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.
59 results · page 1 of 2
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.
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.
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.
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.
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.
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.
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.
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.
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.
Jul 10, 2026ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2026-52761 · Other software · owasp-modsecurity · reported by GitHubMedium 5.8
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 through 3.0.15, the t:utf8toUnicode transformation in src/actions/transformations/utf8_to_unicode.cc produces wrong output on i386 architecture because snprintf uses sizeof on a char pointer rather than the length of the unicode buffer, allowing rules that use this transformation to be bypassed on i386 architecture. This issue is fixed in version 3.0.16.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 10, 2026ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2026-52747 · Other software · owasp-modsecurity · reported by GitHubHigh 8.6
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Prior to 3.0.16, the multipart/form-data request body parser in libmodsecurity silently removes embedded line breaks from non-file form-field values before exporting them to ARGS and ARGS_POST because src/request_body_processor/multipart.cc overwrites reserved bytes in m_reserve instead of appending the current buffer. This creates a parser differential between ModSecurity and backend applications that preserve line breaks in form fields, allowing rules that inspect ARGS or ARGS_POST to miss payloads whose dangerous syntax depends on a line break. This issue is fixed in version 3.0.16.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 12, 2026ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2026-42268 · Other software · owasp-modsecurity · reported by GitHubHigh 8.2
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 to before 3.0.15, there is an unhandled exception (std::out_of_range) caused by unsigned integer underflow in libmodsecurity3 if the user (administrator) uses a rule any of @verifySSN, @verifyCPF, or @verifySVNR. This vulnerability is fixed in 3.0.15.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 5, 2026ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2026-30923 · Other software · owasp-modsecurity · reported by GitHubHigh 8.2
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Libmodsecurity is one component of the ModSecurity v3 project. A segmentation fault occurs when a rule using the t:hexDecode transformation inspects a query string parameter containing a single character. An attacker can exploit this to crash worker processes, causing a denial of service. Service resumes once the attack stops as worker processes recover from the segfault. All versions before 3.0.15 of libModSecurity3 are affected. This has been patched in version 3.0.15.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 5, 2025ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2025-54571 · Other software · owasp-modsecurity · reported by GitHubMedium 6.9
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.11 and below, an attacker can override the HTTP response’s Content-Type, which could lead to several issues depending on the HTTP scenario. For example, we have demonstrated the potential for XSS and arbitrary script source code disclosure in the latest version of mod_security2. This issue is fixed in version 2.9.12.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 2, 2025ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2025-52891 · Other software · owasp-modsecurity · reported by GitHubMedium 6.5
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.8 to before 2.9.11, an empty XML tag can cause a segmentation fault. If SecParseXmlIntoArgs is set to On or OnlyArgs, and the request type is application/xml, and at least one XML tag is empty (eg <foo></foo>), then a segmentation fault occurs. This issue has been patched in version 2.9.11. A workaround involves setting SecParseXmlIntoArgs to Off.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 2, 2025ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2025-48866 · Other software · owasp-modsecurity · reported by GitHubHigh 7.5
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions prior to 2.9.10 contain a denial of service vulnerability similar to GHSA-859r-vvv8-rm8r/CVE-2025-47947. The `sanitiseArg` (and `sanitizeArg` - this is the same action but an alias) is vulnerable to adding an excessive number of arguments, thereby leading to denial of service. Version 2.9.10 fixes the issue. As a workaround, avoid using rules that contain the `sanitiseArg` (or `sanitizeArg`) action.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 21, 2025ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx.CVE-2025-47947 · Other software · owasp-modsecurity · reported by GitHubHigh 7.5
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is `application/json`, and there is at least one rule which does a `sanitiseMatchedBytes` action. A patch is available at pull request 3389 and expected to be part of version 2.9.9. No known workarounds are available.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 20, 2025OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2025-29914 · Other software · corazawaf · reported by GitHubMedium 5.4
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Prior to 3.3.3, if a request is made on an URI starting with //, coraza will set a wrong value in REQUEST_FILENAME. For example, if the URI //bar/uploads/foo.php?a=b is passed to coraza: , REQUEST_FILENAME will be set to /uploads/foo.php. This can lead to a rules bypass. This vulnerability is fixed in 3.3.3.
- Product
- coraza
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Feb 25, 2025Libmodsecurity is one component of the ModSecurity v3 project.CVE-2025-27110 · Other software · owasp-modsecurity · reported by GitHubHigh 7.9
Libmodsecurity is one component of the ModSecurity v3 project. The library codebase serves as an interface to ModSecurity Connectors taking in web traffic and applying traditional ModSecurity processing. A bug that exists only in Libmodsecurity3 version 3.0.13 means that, in 3.0.13, Libmodsecurity3 can't decode encoded HTML entities if they contains leading zeroes. Version 3.0.14 contains a fix. No known workarounds are available.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 9, 2024A buffer overflow in modsecurity v3.0.12 allows attackers to cause a Denial of Service (DoS) via a crafted input inserted into the name parameter.CVE-2024-46292 · Other software · modsecurity · reported by MITREHigh 7.5
A buffer overflow in modsecurity v3.0.12 allows attackers to cause a Denial of Service (DoS) via a crafted input inserted into the name parameter. NOTE: this is disputed by the Supplier because it cannot be reproduced. Also, the product's documentation indicates that it is not guaranteed to be usable with very large values of SecRequestBodyNoFilesLimit (which are required by the claimed issue).
- Product
- modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 30, 2024ModSecurity / libModSecurity 3.0.0 to 3.0.11 is affected by a WAF bypass for path-based payloads submitted via specially crafted request URLs.CVE-2024-1019 · Other software · OWASP ModSecurity · reported by vulnerability@ncsc.chHigh 8.6
ModSecurity / libModSecurity 3.0.0 to 3.0.11 is affected by a WAF bypass for path-based payloads submitted via specially crafted request URLs. ModSecurity v3 decodes percent-encoded characters present in request URLs before it separates the URL path component from the optional query string component. This results in an impedance mismatch versus RFC compliant back-end applications. The vulnerability hides an attack payload in the path component of the URL from WAF rules inspecting it. A back-end may be vulnerable if it uses the path component of request URLs to construct queries. Integrators and users are advised to upgrade to 3.0.12. The ModSecurity v2 release line is not affected by this vulnerability.
- Product
- ModSecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Aug 25, 2023OWASP Coraza WAF is a golang modsecurity compatible web application firewall library.CVE-2023-40586 · Other software · corazawaf · reported by GitHubHigh 7.5
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Due to the misuse of `log.Fatalf`, the application using coraza crashed after receiving crafted requests from attackers. The application will immediately crash after receiving a malicious request that triggers an error in `mime.ParseMediaType`. This issue was patched in version 3.0.1.
- Product
- coraza
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 26, 2023Trustwave ModSecurity 3.x before 3.0.10 has Inefficient Algorithmic Complexity.CVE-2023-38285 · Other software · Owasp · reported by MITREHigh 7.5
Trustwave ModSecurity 3.x before 3.0.10 has Inefficient Algorithmic Complexity.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtrustwave.comtrustwave.com
Jul 12, 2023coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms.CVE-2023-38199 · Other software · Owasp · reported by MITRECritical 9.8
coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion" between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.
- Product
- Coreruleset
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 28, 2023Trustwave ModSecurity 3.0.5 through 3.0.8 before 3.0.9 allows a denial of service (worker crash and unresponsiveness) because some inputs cause a segfault in thCVE-2023-28882 · Other software · Owasp · reported by MITREHigh 7.5
Trustwave ModSecurity 3.0.5 through 3.0.8 before 3.0.9 allows a denial of service (worker crash and unresponsiveness) because some inputs cause a segfault in the Transaction class for some configurations.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordtrustwave.comtrustwave.com
Jan 20, 2023Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web ApCVE-2023-24021 · Other software · Trustwave · reported by MITREHigh 7.5
Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the FILES_TMP_CONTENT collection.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 20, 2023In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall.CVE-2022-48279 · Other software · Owasp · reported by MITREHigh 7.5
In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcoreruleset.orggithub.com
Sep 20, 2022The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedlyCVE-2022-39958 · Other software · OWASP · reported by vulnerability@ncsc.chHigh 7.5
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedly submitting an HTTP Range header field with a small byte range. A restricted resource, access to which would ordinarily be detected, may be exfiltrated from the backend, despite being protected by a web application firewall that uses CRS. Short subsections of a restricted resource may bypass pattern matching techniques and allow undetected access. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively and to configure a CRS paranoia level of 3 or higher.
- Product
- ModSecurity Core Rule Set
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcoreruleset.orglists.debian.org
Sep 20, 2022The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass.CVE-2022-39957 · Other software · OWASP · reported by vulnerability@ncsc.chHigh 7.3
The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional "charset" parameter in order to receive the response in an encoded form. Depending on the "charset", this response can not be decoded by the web application firewall. A restricted resource, access to which would ordinarily be detected, may therefore bypass detection. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.
- Product
- ModSecurity Core Rule Set
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcoreruleset.orglists.debian.org
Sep 20, 2022The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character encCVE-2022-39956 · Other software · OWASP · reported by vulnerability@ncsc.chHigh 7.3
The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart requests by submitting a payload that uses a character encoding scheme via the Content-Type or the deprecated Content-Transfer-Encoding multipart MIME header fields that will not be decoded and inspected by the web application firewall engine and the rule set. The multipart payload will therefore bypass detection. A vulnerable backend that supports these encoding schemes can potentially be exploited. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised upgrade to 3.2.2 and 3.3.3 respectively. The mitigation against these vulnerabilities depends on the installation of the latest ModSecurity version (v2.9.6 / v3.0.8).
- Product
- ModSecurity Core Rule Set
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcoreruleset.orglists.debian.org
Sep 20, 2022The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicatCVE-2022-39955 · Other software · OWASP · reported by vulnerability@ncsc.chHigh 7.3
The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass by submitting a specially crafted HTTP Content-Type header field that indicates multiple character encoding schemes. A vulnerable back-end can potentially be exploited by declaring multiple Content-Type "charset" names and therefore bypassing the configurable CRS Content-Type header "charset" allow list. An encoded payload can bypass CRS detection this way and may then be decoded by the backend. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.
- Product
- ModSecurity Core Rule Set
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcoreruleset.orglists.debian.org
Sep 2, 2022Modsecurity owasp-modsecurity-crs 3.2.0 (Paranoia level at PL1) has a SQL injection bypass vulnerability.CVE-2020-22669 · Other software · Owasp · reported by MITRECritical 9.8
Modsecurity owasp-modsecurity-crs 3.2.0 (Paranoia level at PL1) has a SQL injection bypass vulnerability. Attackers can use the comment characters and variable assignments in the SQL syntax to bypass Modsecurity WAF protection and implement SQL injection attacks on Web applications.
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 7, 2021ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects.CVE-2021-42717 · Other software · Owasp · reported by MITREHigh 7.5
ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.debian.orgdebian.org
Nov 5, 2021OWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pathname.CVE-2021-35368 · Other software · Owasp · reported by MITRECritical 9.8
OWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pathname.
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcoreruleset.orglists.debian.org
May 6, 2021ModSecurity 3.x before 3.0.4 mishandles key-value pair parsing, as demonstrated by a "string index out of range" error and worker-process crash for a "Cookie: =CVE-2019-25043 · Other software · Owasp · reported by MITREMedium 5.3
ModSecurity 3.x before 3.0.4 mishandles key-value pair parsing, as demonstrated by a "string index out of range" error and worker-process crash for a "Cookie: =abc" header.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2020Trustwave ModSecurity 3.x through 3.0.4 allows denial of service via a special request.CVE-2020-15598 · Other software · Owasp · reported by MITREHigh 7.5
Trustwave ModSecurity 3.x through 3.0.4 allows denial of service via a special request. NOTE: The discoverer reports "Trustwave has signaled they are disputing our claims." The CVE suggests that there is a security issue with how ModSecurity handles regular expressions that can result in a Denial of Service condition. The vendor does not consider this as a security issue because1) there is no default configuration issue here. An attacker would need to know that a rule using a potentially problematic regular expression was in place, 2) the attacker would need to know the basic nature of the regular expression itself to exploit any resource issues. It's well known that regular expression usage can be taxing on system resources regardless of the use case. It is up to the administrator to decide on when it is appropriate to trade resources for potential security benefit
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpacketstormsecurity.comseclists.org
Jan 21, 2020Trustwave ModSecurity 3.0.0 through 3.0.3 allows an attacker to send crafted requests that may, when sent quickly in large volumes, lead to the server becoming CVE-2019-19886 · Other software · Owasp · reported by MITREHigh 7.5
Trustwave ModSecurity 3.0.0 through 3.0.3 allows an attacker to send crafted requests that may, when sent quickly in large volumes, lead to the server becoming slow or unresponsive (Denial of Service) because of a flaw in Transaction::addRequestHeader in transaction.cc.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
Aug 5, 2019cPanel before 60.0.25 allows file-create and file-chmod operations during ModSecurity Audit logfile processing (SEC-165).CVE-2016-10771 · Websites & servers · Cpanel · reported by MITREHigh 8.1
cPanel before 60.0.25 allows file-create and file-chmod operations during ModSecurity Audit logfile processing (SEC-165).
- Product
- Cpanel
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocumentation.cpanel.netdocumentation.cpanel.net
Aug 1, 2019cPanel before 57.9999.54 allows SQL Injection via the ModSecurity TailWatch log file (SEC-123).CVE-2016-10817 · Websites & servers · Cpanel · reported by MITRECritical 9.8
cPanel before 57.9999.54 allows SQL Injection via the ModSecurity TailWatch log file (SEC-123).
- Product
- Cpanel
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddocumentation.cpanel.netnews.cpanel.com
Jul 9, 2019An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) 3.0.2.CVE-2019-13464 · Other software · Modsecurity · reported by MITREHigh 7.5
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) 3.0.2. Use of X.Filename instead of X_Filename can bypass some PHP Script Uploads rules, because PHP automatically transforms dots into underscores in certain contexts where dots are invalid.
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2019An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0.CVE-2019-11391 · Other software · Modsecurity · reported by MITREMedium 5.3
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with $a# at the beginning and nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2019An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0.CVE-2019-11390 · Other software · Modsecurity · reported by MITREMedium 5.3
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with set_error_handler# at the beginning and nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2019An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0.CVE-2019-11389 · Other software · Modsecurity · reported by MITREMedium 5.3
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-933-APPLICATION-ATTACK-PHP.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with next# at the beginning and nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2019An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0.CVE-2019-11388 · Other software · Modsecurity · reported by MITREMedium 5.3
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-932-APPLICATION-ATTACK-RCE.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with nested repetition operators. NOTE: the software maintainer disputes that this is a vulnerability because the issue cannot be exploited via ModSecurity
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2019An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0.CVE-2019-11387 · Other software · Modsecurity · reported by MITREMedium 5.3
An issue was discovered in OWASP ModSecurity Core Rule Set (CRS) through 3.1.0. /rules/REQUEST-942-APPLICATION-ATTACK-SQLI.conf allows remote attackers to cause a denial of service (ReDOS) by entering a specially crafted string with nested repetition operators.
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcoreruleset.orggithub.com
Sep 2, 2018A SQL injection bypass (aka PL1 bypass) exists in OWASP ModSecurity Core Rule Set (owasp-modsecurity-crs) through v3.1.0-rc3 via {`a`b} where a is a special funCVE-2018-16384 · Other software · Owasp · reported by MITREHigh 7.5
A SQL injection bypass (aka PL1 bypass) exists in OWASP ModSecurity Core Rule Set (owasp-modsecurity-crs) through v3.1.0-rc3 via {`a`b} where a is a special function name (such as "if") and b is the SQL statement to be executed.
- Product
- Owasp Modsecurity Core Rule SET
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comlists.debian.org
Jul 3, 2018ModSecurity 3.0.0 has XSS via an onerror attribute of an IMG element.CVE-2018-13065 · Other software · Owasp · reported by MITREMedium 6.1
ModSecurity 3.0.0 has XSS via an onerror attribute of an IMG element. NOTE: a third party has disputed this issue because it may only apply to environments without a Core Rule Set configured
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comhackings8n.blogspot.com
Apr 15, 2014apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer coding with a capitalized Chunked value in tCVE-2013-5705 · Other software · Trustwave · reported by MITREMedium 5
apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordmartin.swende.sedebian.org
Jul 15, 2013The ModSecurity module before 2.7.4 for the Apache HTTP Server allows remote attackers to cause a denial of service (NULL pointer dereference, process crash, anCVE-2013-2765 · Other software · Trustwave · reported by MITREMedium 5
The ModSecurity module before 2.7.4 for the Apache HTTP Server allows remote attackers to cause a denial of service (NULL pointer dereference, process crash, and disk consumption) via a POST request with a large body and a crafted Content-Type header.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordarchives.neohapsis.comlists.opensuse.org
Apr 25, 2013ModSecurity before 2.7.3 allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service (CPU and memory cCVE-2013-1915 · Other software · Trustwave · reported by Red HatHigh 7.5
ModSecurity before 2.7.3 allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service (CPU and memory consumption) via an XML external entity declaration in conjunction with an entity reference, aka an XML External Entity (XXE) vulnerability.
- Product
- Modsecurity
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
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.
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