Updated 2 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list

34added in the last 30 days

344new WordPress flaws this week

390,080entries in the database

1,289 results · page 1 of 26

Oct 28, 2026A vulnerability in the Remote Access SSL VPN service of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat DefensCVE-2026-76418 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the Remote Access SSL VPN service of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to logic errors when secondary authentication is configured on a tunnel group. An attacker could exploit this vulnerability by sending a crafted request when connecting to the SSL remote access VPN. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Product
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 27, 2026A link following vulnerability in WatchGuard Fireware OS’s firewall daemon allows a local attacker with code execution as a low-privileged system process to oveCVE-2026-93864 · Network & remote access · WatchGuard · reported by 5d1c2695-1a31-4499-88ae-e847036fd7e3High 7.1
A link following vulnerability in WatchGuard Fireware OS’s firewall daemon allows a local attacker with code execution as a low-privileged system process to overwrite arbitrary files with root privileges, and to tamper with firewall IP set data, by planting a crafted file system object and triggering a list update. Written content is partially constrained.
Product
Fireware OS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record psirt.watchguard.com
Oct 27, 2026An external control of file path vulnerability in a WatchGuard Fireware OS firewall diagnostic command allows a remote, authenticated attacker with at least reaCVE-2026-90464 · Network & remote access · WatchGuard · reported by 5d1c2695-1a31-4499-88ae-e847036fd7e3High 7.2
An external control of file path vulnerability in a WatchGuard Fireware OS firewall diagnostic command allows a remote, authenticated attacker with at least read-only (Device Monitor) privileges and access to the management CLI to create, truncate, or overwrite arbitrary files and modify kernel parameters with root privileges by submitting a specially crafted command. Written content is limited to numeric values.
Product
Fireware OS
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record psirt.watchguard.com
Oct 26, 2026Multiple cross site scripting (XSS) vulnerabilities affect OPNsense firewall vesrion 26.7.1_1 and earlier allows low privileged attacker to execute Javascript iCVE-2026-115425 · Other software · OPNsense · reported by vulnerability@ncsc.chMedium 5.6
Multiple cross site scripting (XSS) vulnerabilities affect OPNsense firewall vesrion 26.7.1_1 and earlier allows low privileged attacker to execute Javascript in the context of another user visiting a specific page or clicking on a specifically crafted link.
Product
OPNsense firewall
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record digitalcanion.com github.com
Oct 21, 2026A vulnerability in the interprocess communication (IPC) channel of the Secure Firewall Posture module in Cisco Secure Client could allow an authenticated, localCVE-2026-76462 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.5
A vulnerability in the interprocess communication (IPC) channel of the Secure Firewall Posture module in Cisco Secure Client could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a series of crafted IPC messages to a local socket. A successful exploit could allow the attacker to perform limited file write operations on the filesystem with SYSTEM or root privileges. Although this vulnerability affects the Secure Firewall Posture module in Cisco Secure Client on Windows, macOS, and Linux operating systems, this vulnerability could be used to obtain full root privileges on macOS and Linux. For that reason Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates.
Product
Cisco Secure Client
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026The pfSense REST API package is an unofficial, open-source REST and GraphQL API for pfSense CE and pfSense Plus firewalls.CVE-2026-113779 · Other software · pfrest · reported by GitHubHigh 8.8
The pfSense REST API package is an unofficial, open-source REST and GraphQL API for pfSense CE and pfSense Plus firewalls. A privilege escalation vulnerability in pfSense-pkg-RESTAPI prior to version 2.9.0 allows authenticated accounts holding the dedicated settings sync permission to modify REST API configuration secrets. This enables a non-administrative user to elevate their privileges to a full administrator. pfSense-pkg-RESTAPI 2.9.0 patches the issue. Access to the HA settings sync endpoint now strictly requires full administrative privileges (`page-all`). The sub-administrative sync privilege has been removed in versions v2.9.0 and later. In addition to correcting the access control boundary, version 2.9.0 includes the following hardening measures: opt-in default and format and validation modernization. As a workaround, one may mitigate exposure by taking either or all of the following steps. Revoke Scoped Permissions: Remove the `api-v2-system-restapi-settings-sync-post` privilege from all non-administrative users. Apply ACLs: Configure REST API Access Control Lists (ACLs) and/or firewall rules to restrict access to API endpoints exclusively to trusted administrator and HA
Product
pfSense-pkg-RESTAPI
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 16, 2026WP Ghost (Hide My WP Ghost) – Security & Firewall: Stored Cross-Site ScriptingCVE-2026-89051 · WordPress plugins & themes · reported by WordfenceHigh 7.2
The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'replaceHeadersAndTags' function in versions up to, and including, 7.0.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user clicks on the injected link.
Product
WP Ghost (Hide My WP Ghost) – Security & Firewall
Affected
up to 7.0.12
What to do
Affects up to 7.0.12. Update WP Ghost (Hide My WP Ghost) – Security & Firewall to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org wordfence.com
Oct 15, 2026Netgate pfSense CE 2.7.1 through 2.9.0 contains a reflected cross-site scripting vulnerability in firewall_rules.php that allows remote attackers to inject scriCVE-2026-111233 · Other software · Netgate · reported by VulnCheckLow 2.3
Netgate pfSense CE 2.7.1 through 2.9.0 contains a reflected cross-site scripting vulnerability in firewall_rules.php that allows remote attackers to inject script via the unencoded if parameter. When the non-default Require Firewall Interface option is enabled, attackers can lure users with firewall rules privileges into opening a crafted GET link to execute script in the WebGUI with their privileges.
Product
pfSense CE
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record abraxaslabs.tech github.com
Oct 15, 2026Netgate pfSense CE 2.3.0 through 2.9.0 contains a stored cross-site scripting vulnerability that allows authenticated users with Firewall: Rules or NAT: Port FoCVE-2026-111232 · Other software · Netgate · reported by VulnCheckMedium 4.8
Netgate pfSense CE 2.3.0 through 2.9.0 contains a stored cross-site scripting vulnerability that allows authenticated users with Firewall: Rules or NAT: Port Forward privileges to inject scripts via the separator color field. Attackers can submit a crafted separator[] color value that display_separator() renders unencoded into class attributes, executing in administrators' browsers to perform WebGUI actions with their privileges.
Product
pfSense CE
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record abraxaslabs.tech github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-71490 · Other software · opnsense · reported by GitHubHigh 7.1
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.11, OPNsense\Core\ACL::hasPrivilege() appends a directly assigned comma-separated <priv> value as one string and then uses an exact comparison when checking user-config-readonly. A user directly assigned both a component write privilege and user-config-readonly can therefore be treated as lacking the read-only restriction, and MVC APIs protected by throwReadOnly() can persist configuration changes for that component. Group privileges are not affected by the same parser flaw because the group path already splits comma-separated values. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-63442 · Other software · opnsense · reported by GitHubHigh 8.1
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the unauthenticated WebGUI login usernamefld accepts carriage-return and line-feed characters that survive LOG_AUTH processing through syslog-ng-lockout.conf into the syslog-ng program destination feeding lockout_handler. The consumer's readline() processing treats an injected fragment as a separate authentication event and selects the first syntactically valid IP address from the forged line. An attacker with network access to the login page can forge failure events for another IP, causing that IP to be added to the sshlockout PF table and its active states to be killed, or forge accepted events that reset an attacker's own brute-force counter. This can block administrative, DNS, gateway, or monitoring addresses and can bypass password-guessing lockout without authentication. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-58395 · Other software · opnsense · reported by GitHubMedium 4.3
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the safe-delete path reached through ApiMutableModelControllerBase::delBase() interpolates an unvalidated safe-delete token from the request URL into an XPath expression over config.xml before confirming that the token is a valid identifier. A user holding any one affected module privilege can send a crafted token to one of 21 affected delete endpoints covering Traffic Shaper, DHCP relay, Dnsmasq, Firewall Category, or Kea DHCP, causing the XPath to match configuration data across modules. The resulting error response exposes configuration item names, descriptions, reference paths, and UUIDs and provides an XPath substring-presence oracle, including for modules the user cannot otherwise access. The request does not modify configuration or perform a deletion. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-58394 · Other software · opnsense · reported by GitHubMedium 5.2
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, src/www/system_advanced_admin.php reads certificate records into $a_cert but omits that array from legacy_html_escape_form_data() before rendering each certificate descr value in the SSL Certificate selector. The certificate description accepts HTML metacharacters, allowing a user with the page-system-certmanager privilege to store markup that executes when another user opens System Settings Administration. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-58393 · Other software · opnsense · reported by GitHubMedium 5.9
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the OpenVPN Client Specific Override common_name field accepts path traversal sequences and openvpn_csc_conf_write() concatenates the value into /var/etc/openvpn-csc/<vpnid>/<common_name> without normalization or a basename check. The affected event handlers are client_connect.php and user_pass_verify.php. An authenticated user with Client Specific Override privileges can store the traversal value, and a matching OpenVPN client-connect or authentication event causes a generated CSO file to be written outside the intended directory. The file content is generated OpenVPN configuration rather than arbitrary bytes, and practical exploitation requires the attacker to cause a matching common name or username to be processed. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-58392 · Other software · opnsense · reported by GitHubMedium 5.4
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the NTP GPS page stores the operator-supplied initcmd value in base64 form, applies legacy_html_escape_form_data() to the encoded string, and then uses base64_decode() to decode the value directly into the GPS initialization-command textarea in src/www/services_ntpd_gps.php. Because decoding occurs after escaping, stored HTML remains unescaped at the output sink. A user with page-services-ntp-gps privilege can store a value that closes the textarea, and script executes in the session of any user who later opens the GPS page. The script can read CSRF material and perform authenticated actions, including actions available to an administrator. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-58391 · Other software · opnsense · reported by GitHubMedium 5.4
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, Firewall Rules and NAT views place stored category names and alias descriptions into HTML title attributes in filter_rule.volt and nat_rule.volt without quote-safe encoding. The response layer uses ENT_NOQUOTES, so a double quote survives and closes the attribute, allowing an event-handler attribute to be added to the existing span. A user with Firewall Categories or Firewall Alias Edit privileges can store a category name or alias description; the category must be assigned to a filter or NAT rule, or the alias must be referenced by a rule source or destination, and the rule must be saved so the affected tooltip is rendered. Script then executes in the session of an administrator or other user who opens the affected Rules or NAT page. The script can access CSRF material and perform authenticated actions as the victim. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-58390 · Other software · opnsense · reported by GitHubHigh 8
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the OpenVPN connection-status dashboard widget in src/opnsense/www/js/widgets/OpenVPNClients.js and the connection-status view place a client common_name into data-common-name attributes without quote-safe encoding. Exploitation requires an OpenVPN server configured with username-as-common-name and RADIUS or LDAP authentication, plus the ability to provision or self-register a valid backend username containing a double quote; deployments where the same administrator controls both the identity backend and firewall do not cross a separate trust boundary. An authenticated client using that username can close the attribute and add an event handler, while the local user database is not affected because its username validator rejects quotes. Script executes in an administrator's session when the administrator opens the dashboard or connection-status page and the injected event is triggered; the demonstrated payload used pointer movement over the client row rather than unconditional page-load execution. The advisory demonstrates that the script can read config.xml, invoke privileged APIs, reset the root p
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-57155 · Other software · opnsense · reported by GitHubCritical 9.9
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the Firewall Alias GeoIP importer's process_zip() and process_gzip() paths in src/opnsense/scripts/filter/lib/alias/geoip.py use an unvalidated CSV country_code value to construct output filenames below /usr/local/share/GeoIP/alias. A user with Firewall Alias Edit privilege can configure an attacker-controlled GeoIP source URL and supply an archive whose country code traverses into another existing directory, causing attacker-controlled content to be written as root with an -IPv4 or -IPv6 suffix. A crafted newsyslog fragment and oversized log file can use the default hourly root cron job to execute commands as root, resulting in complete firewall compromise. This issue is fixed in version 26.1.11.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 15, 2026OPNsense is a FreeBSD based firewall and routing platform.CVE-2026-53582 · Other software · opnsense · reported by GitHubHigh 7.1
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.10, the Trust module stores attacker-controlled certificate authority and certificate refid values and interpolates them into XPath expressions in src/opnsense/mvc/app/models/OPNsense/Trust/FieldTypes/CAsField.php and src/opnsense/mvc/app/models/OPNsense/Trust/FieldTypes/CertificatesField.php. A user with CA Manager or Certificate Manager privileges can submit a crafted refid and repeatedly retrieve the object to obtain a boolean refcount oracle, allowing values in config.xml to be recovered character by character. Exposed values can include password hashes, API credentials, certificate private keys, VPN key material, and high-availability credentials, enabling privilege escalation and compromise of other security domains. This issue is fixed in version 26.1.10.
Product
core
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 13, 2026Use after free in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.CVE-2026-83679 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.
Product
Windows 11 version 23H2
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Oct 12, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-41508 · Other software · corazawaf · reported by GitHubMedium 5.8
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.4.0 until 3.8.0, the multipart processor in internal/bodyprocessors/multipart.go treats io.ErrUnexpectedEOF as nonfatal without setting MULTIPART_STRICT_ERROR. A remote attacker can submit a truncated multipart body that produces io.ErrUnexpectedEOF, causing parsing to stop without raising the strict-error signal used by the recommended defensive rule. Rules 200002 and 200003 do not fire, allowing multipart parser-disagreement payloads to reach a backend that interprets the truncated body differently. This issue is fixed in version 3.8.0.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 12, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-41504 · Other software · corazawaf · reported by GitHubMedium 5.8
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the Native audit-log formatter in internal/auditlog/formats.go writes attacker-influenced request and response fields without neutralizing carriage returns or line feeds. When SecAuditLogFormat Native is enabled, injected line breaks can create forged lines inside a transaction record. An attacker who controls request or response body, header, error-message, or matched-rule data can inject carriage returns and line feeds that appear as forged audit lines within a transaction record. The forged content can mislead operators and line-oriented SIEM processing, although the unpredictable transaction boundary prevents straightforward impersonation of a separate complete session. This issue is fixed in version 3.8.0.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 12, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-41510 · Other software · corazawaf · reported by GitHubHigh 7.2
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.1, Coraza silently drops arguments after SecArgumentsLimit in internal/corazawaf/transaction.go, while internal/bodyprocessors/urlencoded.go writes ARGS_POST without enforcing the cap. The flaw is triggered when an unauthenticated attacker sends more arguments than SecArgumentsLimit or supplies bodies that expand beyond the configured argument and flattening budgets. An unauthenticated attacker can flood requests with arguments so excess values are silently omitted from ARGS, ARGS_GET, ARGS_NAMES, ARGS_GET_NAMES, ARGS_POST, or ARGS_PATH before security rules inspect them; affected urlencoded and JSON processing can also consume excessive memory. The omission can bypass WAF rules protecting the downstream application, and unbounded or amplified argument processing can cause memory consumption and service degradation. This issue is fixed in version 3.8.1.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 12, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-104774 · Other software · corazawaf · reported by GitHubMedium 5.8
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the t:jsDecode transformation in internal/transformations/js_decode.go:64-70 includes the backslash in the octal buffer, causing ParseInt to fail and return a null byte. The flaw is triggered when a rule relies on t:jsDecode and the request contains JavaScript octal escape sequences. An unauthenticated attacker can encode attack syntax with JavaScript octal escapes so the backend decodes the intended bytes while Coraza rules using t:jsDecode inspect corrupted null-byte output. The mismatch can bypass WAF rules and expose the protected application to attacks such as cross-site scripting or SQL injection. This issue is fixed in version 3.8.0.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 9, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-107835 · Other software · corazawaf · reported by GitHubMedium 4
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Prior to 3.8.1, internal/cookies.ParseCookies in internal/cookies/cookies.go handles boundary ASCII control characters and control-only or empty cookie names differently from several backend cookie parsers. An unauthenticated attacker can craft a Cookie header so Coraza indexes or drops a cookie under a different name or value from the backend application, causing rules targeting REQUEST_COOKIES or REQUEST_COOKIES_NAMES to miss application-visible attacker data. Exploitation depends on the backend parser and affected rule scope, and interior control characters with inconsistent backend behavior are outside this advisory's remediation. This issue is fixed in version 3.8.1.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 9, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-107834 · Other software · corazawaf · reported by GitHubMedium 5.3
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the multipart loop in internal/bodyprocessors/multipart.go executes defer temp.Close() for every uploaded file part, so each temporary-file descriptor remains open until the complete request returns. An unauthenticated attacker can submit a multipart body containing many minimal file parts and exhaust the process file-descriptor table within the request-body size limit, causing os.CreateTemp failures, MULTIPART_STRICT_ERROR responses, blocked legitimate uploads, and process-wide inability to open files or sockets. This issue is fixed in version 3.8.0.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 9, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-107833 · Other software · corazawaf · reported by GitHubMedium 5.9
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, ProcessResponse in internal/bodyprocessors/json.go passes the ignoreJSONRecursionLimit value of -1 to readJSON, while the recursive guard only stops at zero. A network attacker who can cause an application protected by Coraza to return deeply nested JSON can make response-body processing perform quadratic work, consuming one CPU core for seconds per response within the default ResponseBodyLimit. Request JSON processing is not affected by this specific path because it uses the configured request recursion limit, and exploitation requires response-body inspection to be enabled. This issue is fixed in version 3.8.0.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 9, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-107826 · Other software · corazawaf · reported by GitHubHigh 7.5
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.1, readJSON in internal/bodyprocessors/json.go can stop its bounded flattening walk after reaching SecArgumentsLimit or the byte budget and then call gjson.Valid on the complete raw body. An unauthenticated attacker can submit shallow values followed by an extremely deeply nested JSON tail that was not visited by the bounded walk, causing gjson.Valid to recurse without a depth bound and terminate the hosting process with an unrecoverable fatal stack overflow. The ProcessRequest and ProcessResponse JSON paths share the affected readJSON validation flow, and the payload can remain within recommended body-size and argument-count limits. This issue is fixed in version 3.8.1.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 9, 2026OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2026-107825 · Other software · corazawaf · reported by GitHubMedium 4
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, ProcessURI in internal/corazawaf/transaction.go handles a url.ParseRequestURI failure by retaining the raw URI but leaving QUERY_STRING, ARGS_GET, ARGS_GET_NAMES, and the GET-derived portion of ARGS empty. An unauthenticated attacker can place control bytes in a URI passed directly by integrations such as coraza-spoa, coraza-proxy-wasm, custom FFI hosts, or WASM hosts, causing Coraza to omit query parameters that the downstream integration may still process and allowing rules targeting those variables to be bypassed. The bundled coraza/v3/http integration is not affected because Go net/http rejects such malformed request targets before calling Coraza. This issue is fixed in version 3.8.0.
Product
coraza
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Oct 7, 2026The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams senCVE-2026-92542 · Other software · Docker · reported by security@docker.comMedium 6.9
The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged datagrams sent by user processes. Any packet sent from the host network namespace of a Linux Swarm node is encrypted with the overlay-network IPsec parameters which meets the following criteria: - UDP datagram - Destination port is the Swarm data-path port - Datagram starts with a VXLAN header for the VNI of an encrypted overlay network which any running container on the node is connected to
Product
Docker Engine
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com
Oct 6, 2026On affected Arista Wi-Fi access points with captive portal, or application firewall enabled on at least one SSID, a vulnerability in the wireless gateway servicCVE-2026-102162 · Other software · Arista Networks · reported by psirt@arista.comCritical 9.4
On affected Arista Wi-Fi access points with captive portal, or application firewall enabled on at least one SSID, a vulnerability in the wireless gateway service could allow an unauthenticated network-adjacent attacker to send a crafted packet that triggers a stack overflow, resulting in a denial-of-service condition or potentially execute arbitrary code on the device. The wireless gateway service is automatically restarted after a crash, allowing repeated exploitation attempts.
Product
Wi-Fi Access Points
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record arista.com
Sep 30, 2026Subscriber Bypass Vulnerability in All In One WP Security & Firewall <= 5.4.8 versions.CVE-2026-96825 · WordPress plugins & themes · reported by PatchstackMedium 4.2
Subscriber Bypass Vulnerability in All In One WP Security & Firewall <= 5.4.8 versions.
Affected
up to 5.4.8
What to do
Affects up to 5.4.8. Update the plugin to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record patchstack.com
Sep 28, 2026mH-DEVELOPER smart home module does not load any firewall rules at startup.CVE-2026-82932 · Other software · F&F Filipowski · reported by cvd@cert.plMedium 5.3
mH-DEVELOPER smart home module does not load any firewall rules at startup. This leaves all listening services, including SSH, HTTP, WebSocket, and Node-RED, fully exposed on the LAN without access control. Any client on the same network can reach every service. This issue was fixed in version 3.0.30
Product
mH-DEVELOPER
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record cert.pl fif.com.pl
Sep 27, 2026Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 fail to include firewall identification in JWT tokens issued by separate Admin and Shop API CVE-2026-100871 · Other software · Sylius · reported by VulnCheckHigh 8.7
Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 fail to include firewall identification in JWT tokens issued by separate Admin and Shop API endpoints. Attackers can register a shop customer account using an administrator's email address and obtain a token that the Admin API resolves to that administrator, granting full administrative access.
Product
Sylius
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com github.com
Sep 23, 2026ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.709 and below were vulnerable to a Data Exposure vulnerability in the Firewall Analyzer syslCVE-2026-76980 · Email & office · Zohocorp · reported by 0fc0942c-577d-436f-ae8e-945763c79b02High 7.4
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.709 and below were vulnerable to a Data Exposure vulnerability in the Firewall Analyzer syslog collector.
Product
ManageEngine OpManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record manageengine.com
Sep 23, 2026ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.709 and below were vulnerable to an XML Injection vulnerability in the Rule Tracking CompareCVE-2026-76979 · Email & office · Zohocorp · reported by 0fc0942c-577d-436f-ae8e-945763c79b02High 7.7
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.709 and below were vulnerable to an XML Injection vulnerability in the Rule Tracking Compare Policies feature.
Product
ManageEngine OpManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record manageengine.com
Sep 23, 2026ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.709 and below were vulnerable to a Command Injection vulnerability in the Diagnose Settings CVE-2026-76978 · Email & office · Zohocorp · reported by 0fc0942c-577d-436f-ae8e-945763c79b02High 8.8
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.709 and below were vulnerable to a Command Injection vulnerability in the Diagnose Settings feature.
Product
ManageEngine OpManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record manageengine.com
Sep 23, 2026ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Broken Access Control vulnerability that allowed an autheCVE-2026-84791 · Email & office · Zohocorp · reported by 0fc0942c-577d-436f-ae8e-945763c79b02High 7.1
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Broken Access Control vulnerability that allowed an authenticated low-privilege user to modify Change Management report schedule configurations for firewalls outside their assigned scope.
Product
ManageEngine OpManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record manageengine.com
Sep 23, 2026ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Broken Access Control vulnerability that allowed an autheCVE-2026-84789 · Email & office · Zohocorp · reported by 0fc0942c-577d-436f-ae8e-945763c79b02High 7.1
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Broken Access Control vulnerability that allowed an authenticated low-privilege user to create alert notifications for firewalls outside their assigned scope.
Product
ManageEngine OpManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record manageengine.com
Sep 23, 2026ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Privilege Escalation vulnerability that allowed an authenCVE-2026-84787 · Email & office · Zohocorp · reported by 0fc0942c-577d-436f-ae8e-945763c79b02High 8.1
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Privilege Escalation vulnerability that allowed an authenticated low-privilege user to gain Administrator privileges through Report Profile import.
Product
ManageEngine OpManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record manageengine.com
Sep 23, 2026ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.669 and below were vulnerable to an SQL Injection vulnerability in Rule Management Search ReCVE-2026-14913 · Email & office · Zohocorp · reported by 0fc0942c-577d-436f-ae8e-945763c79b02High 8.8
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.669 and below were vulnerable to an SQL Injection vulnerability in Rule Management Search Reports.
Product
ManageEngine OpManager
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record manageengine.com
Sep 19, 2026WP Ghost (Hide My WP Ghost) – Security & Firewall: Open RedirectCVE-2026-7527 · WordPress plugins & themes · reported by WordfenceMedium 4.7
The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 7.0.02. This is due to the plugin not properly validating user input. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into clicking on a specially crafted link. Exploitation requires tricking a logged-in user into clicking a crafted logout URL; the victim is fully logged out via wp_logout() before the malicious redirect is issued, making the logout irreversible as part of the attack chain.
Product
WP Ghost (Hide My WP Ghost) – Security & Firewall
Affected
up to 7.0.02
What to do
Affects up to 7.0.02. Update WP Ghost (Hide My WP Ghost) – Security & Firewall to the newest version and check its changelog mentions this fix; if there isn’t one yet, deactivate it until there is.
Full record and what to do →NVD record plugins.trac.wordpress.org plugins.trac.wordpress.org
Sep 18, 2026Hide My WP Ghost: Does not verify that a request is a genuine WooCommerce request before disabling its firewallCVE-2026-86796 · WordPress plugins & themes · reported by WPScanMedium 5.3
The Hide My WP Ghost WordPress plugin before 7.0.11 does not verify that a request is a genuine WooCommerce request before disabling its firewall, threat-detection and login/URL-hiding protections, treating the mere presence of an attacker-suppliable request parameter as sufficient, which allows unauthenticated attackers to disable those protections and re-expose the concealed login and admin URLs on any request.
Product
Hide My WP Ghost
Fixed in
7.0.11
What to do
Update Hide My WP Ghost to 7.0.11 or newer.
Full record and what to do →NVD record wpscan.com
Sep 16, 2026A vulnerability in Cisco Adaptive Security Device Manager (ASDM) single sign-on (SSO) handler for Cisco Secure FMC Software could allow an unauthenticated, remoCVE-2026-76413 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.2
A vulnerability in Cisco Adaptive Security Device Manager (ASDM) single sign-on (SSO) handler for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to log in as the Cisco ASDM administrator user. This vulnerability is due to improper management of the Cisco ASDM SSO token. An attacker could exploit this vulnerability by performing session token forgery techniques. A successful exploit could allow the attacker to log in as the administrator user and, by repeating this action, keep legitimate administrators locked out of the ASDM indefinitely.
Product
Cisco Secure Firewall Management Center (FMC)
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 16, 2026A vulnerability in the remote diagnostics debugger of Cisco Secure FMC Software could allow an authenticated, remote attacker to enable the remote diagnostics dCVE-2026-76412 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.5
A vulnerability in the remote diagnostics debugger of Cisco Secure FMC Software could allow an authenticated, remote attacker to enable the remote diagnostics debugger service. This vulnerability is due to an error when checking the privilege level of a user who is invoking remote diagnostics. An attacker could exploit this vulnerability by authenticating to the device, either through the web-based management interface or the REST API, and using the remote diagnostics debugger to grant a user elevated privileges. A successful exploit could allow the attacker to elevate privileges to root. Notes: To exploit this vulnerability, the attacker must have valid user credentials on the affected device. The CVSSv3.1 Attack Complexity is High due to the multistage process required to fully exploit this vulnerability.
Product
Cisco Secure Firewall Management Center (FMC)
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 16, 2026A vulnerability in the web-based management interface of Cisco Secure FMC Software could allow an authenticated, remote attacker to perform a SQL injection attaCVE-2026-20344 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.8
A vulnerability in the web-based management interface of Cisco Secure FMC Software could allow an authenticated, remote attacker to perform a SQL injection attack against an affected device. To exploit this vulnerability, the attacker must have a valid account on the device with the role of Security Approver, Access Admin, or Network Admin. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to obtain any data from the database, obtain the session credentials of an authenticated Administrator, and take actions with administrative privileges on the affected device.
Product
Cisco Secure Firewall Management Center (FMC)
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 16, 2026A vulnerability in a critical API for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to download sensitive files and use unbounded diCVE-2026-20343 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.5
A vulnerability in a critical API for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to download sensitive files and use unbounded disk space. This vulnerability exists because a critical API lacks authentication. An attacker could exploit this vulnerability by repeatedly invoking the API. A successful exploit could allow the attacker to download sensitive files that should be restricted and consume disk space so the device could become unresponsive, causing a DoS condition.
Product
Cisco Secure Firewall Management Center (FMC)
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 16, 2026A vulnerability in a specific file download API of Cisco Secure FMC Software could allow an authenticated, remote attacker to download arbitrary files from an aCVE-2026-20342 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.7
A vulnerability in a specific file download API of Cisco Secure FMC Software could allow an authenticated, remote attacker to download arbitrary files from an affected system. This vulnerability exists because user input is not being sanitized. An attacker could exploit this vulnerability by sending a crafted HTTPS request. A successful exploit could allow the attacker to download arbitrary files from the affected system. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Security Analyst (read-only).
Product
Cisco Secure Firewall Management Center (FMC)
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 16, 2026A vulnerability in Cisco Secure FMC Software could allow an authenticated, remote attacker to execute arbitrary commands at the root privilege level.CVE-2026-20340 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.8
A vulnerability in Cisco Secure FMC Software could allow an authenticated, remote attacker to execute arbitrary commands at the root privilege level. This vulnerability is due to unsecured deserialization of web-management user-controlled data. An attacker could exploit this vulnerability by authenticating to the device and sending a crafted HTTP payload. A successful exploit could allow the attacker to save the crafted payload and then execute it on the underlying operating system as root. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Security Analyst (read-only).
Product
Cisco Secure Firewall Management Center (FMC)
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 16, 2026As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall ThCVE-2026-20336 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.8
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20336 are related to issues concerning improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.
Product
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Vulnerability database

The flaws that hit local websites, every Friday.

Tell us what you're building.