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.

1,766exploited flaws on CISA’s list

36added in the last 30 days

544new WordPress flaws this week

391,181entries in the database

3,777 results · page 2 of 76

Oct 28, 2026Dell PowerProtect Data Domain Management Center, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 releCVE-2026-86401 · Other software · Dell · reported by security_alert@emc.comLow 2.7
Dell PowerProtect Data Domain Management Center, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information exposure.
Product
PowerProtect Data Domain Management Center
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 28, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-86400 · Other software · Dell · reported by security_alert@emc.comCritical 9.8
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Authentication vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to arbitrary command execution with root privileges. This is a critical severity vulnerability as it allows an attacker to take complete control of the system. Dell recommends customers to upgrade at the earliest opportunity.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 28, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-86399 · Other software · Dell · reported by security_alert@emc.comHigh 7.2
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Command execution.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 28, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-86398 · Other software · Dell · reported by security_alert@emc.comHigh 8.8
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to filesystem access for attacker.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 28, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-86397 · Other software · Dell · reported by security_alert@emc.comCritical 9.8
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Authentication vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to privileged account creation. This is a critical severity vulnerability as it allows an attacker to take complete control of the system. Dell recommends customers to upgrade at the earliest opportunity.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 28, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-86396 · Other software · Dell · reported by security_alert@emc.comHigh 8.8
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to command execution.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 28, 2026Dell PowerProtect Data Domain Virtual Edition, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 releasCVE-2026-86395 · Other software · Dell · reported by security_alert@emc.comHigh 7.2
Dell PowerProtect Data Domain Virtual Edition, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Command execution.
Product
PowerProtect Data Domain Virtual Edition
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 28, 2026MxChat – AI Chatbot & Content Generation for: Stored DOM-Based Cross-Site ScriptingCVE-2026-110662 · WordPress plugins & themes · reported by WordfenceHigh 7.2
The MxChat – AI Chatbot & Content Generation for WordPress plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'feedback' parameter in all versions up to, and including, 3.2.25 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 accesses an injected page. The stored payload is written by any unauthenticated visitor via a single POST to admin-ajax.php and detonates automatically when any administrator next loads the Transcripts page.
Product
MxChat – AI Chatbot & Content Generation for
Affected
up to 3.2.25
What to do
Affects up to 3.2.25. Update MxChat – AI Chatbot & Content Generation for 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
Oct 28, 2026Document Embedder – let visitors read files without downloading: Stored DOM-Based Cross-Site ScriptingCVE-2026-109370 · WordPress plugins & themes · reported by WordfenceMedium 6.4
The Document Embedder – let visitors read files without downloading plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via the 'content (post_content containing block JSON documentSource.doc)' parameter in all versions up to, and including, 2.4.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is triggered specifically when the victim clicks the embedded document's Download button, which causes the de_track_download AJAX fallback path to programmatically create an anchor with the attacker-controlled href and call .click() — a condition reached because supplying docId=0 causes can_read_document() to return false, bypassing the normal download flow.
Product
Document Embedder – let visitors read files without downloading
Affected
up to 2.4.0
What to do
Affects up to 2.4.0. Update Document Embedder – let visitors read files without downloading 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
Oct 28, 2026Rank Math SEO – AI SEO Tools to Dominate SEO Rankings: PHP Object InjectionCVE-2026-1928 · WordPress plugins & themes · reported by WordfenceHigh 8.8
The Rank Math SEO – AI SEO Tools to Dominate SEO Rankings plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0.276 via deserialization of untrusted input in the updateMeta REST API endpoint. This makes it possible forauthenticated attackers, with Contributor-level access and above, to inject a PHP Object. The additional presence of a POP chain allows attackers to achieve remote code execution by writing a webshell to the uploads directory.
Product
Rank Math SEO – AI SEO Tools to Dominate SEO Rankings
Affected
up to 1.0.276
What to do
Affects up to 1.0.276. Update Rank Math SEO – AI SEO Tools to Dominate SEO Rankings 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
Oct 27, 2026Private keys for eight eMudhra intermediate CA certificates have been compromised https://emudhra.we-have-a-problem.com/ , which impacts certificate trust for CVE-2026-108014 · Other software · HCLSoftware · reported by psirt@hcl.comCritical 9.1
Private keys for eight eMudhra intermediate CA certificates have been compromised https://emudhra.we-have-a-problem.com/ , which impacts certificate trust for outbound network request features of HCL Domino Server. An unauthenticated network attacker could spoof server certificates to execute a man in the middle (MITM) attack, enabling them to intercept and/or modify the content of outbound TLS connections.
Product
Domino Server
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record support.hcl-software.com
Oct 27, 2026PowerProtect Data Domain Virtual Edition, Feature Release versions 7.7.1.0 through 8.7, LTS2024 release versions 7.13.1.0 through 7.13.1.70, LTS2025 release verCVE-2026-94347 · Other software · Dell · reported by security_alert@emc.comHigh 7.2
PowerProtect Data Domain Virtual Edition, Feature Release versions 7.7.1.0 through 8.7, LTS2024 release versions 7.13.1.0 through 7.13.1.70, LTS2025 release versions 8.3.1.0 through 8.3.1.30, LTS2026 release versions 8.6.1.0 through 8.6.1.10, contain a Process Control vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Protection mechanism bypass.
Product
PowerProtect Data Domain Virtual Edition
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 27, 2026PowerProtect Data Domain Virtual Edition, Feature Release versions 7.7.1.0 through 8.7, LTS2024 release versions 7.13.1.0 through 7.13.1.70, LTS2025 release verCVE-2026-94346 · Other software · Dell · reported by security_alert@emc.comHigh 7.2
PowerProtect Data Domain Virtual Edition, Feature Release versions 7.7.1.0 through 8.7, LTS2024 release versions 7.13.1.0 through 7.13.1.70, LTS2025 release versions 8.3.1.0 through 8.3.1.30, LTS2026 release versions 8.6.1.0 through 8.6.1.10, contain a Path Traversal vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Command execution.
Product
PowerProtect Data Domain Virtual Edition
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 27, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-90727 · Other software · Dell · reported by security_alert@emc.comLow 3.8
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain a Relative Path Traversal vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information tampering.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 27, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-90726 · Other software · Dell · reported by security_alert@emc.comMedium 6
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain a Path Traversal vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Denial of service.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 27, 2026Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1CVE-2026-90725 · Other software · Dell · reported by security_alert@emc.comMedium 4.9
Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain a Stack-based Buffer Overflow vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 27, 2026PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.7, LTS2024 release versions 7.13.1.0 through 7.13.1.70, LTS2025 release versions 8.3.1.0 thCVE-2026-68866 · Other software · Dell · reported by security_alert@emc.comMedium 6.5
PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.7, LTS2024 release versions 7.13.1.0 through 7.13.1.70, LTS2025 release versions 8.3.1.0 through 8.3.1.30, LTS2026 release versions 8.6.1.0 through 8.6.1.10, contain a Relative Path Traversal vulnerability in the certificate. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.
Product
PowerProtect Data Domain
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record dell.com
Oct 27, 2026Race condition, use-after-free in the DOM: File component.CVE-2026-118019 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Race condition, use-after-free in the DOM: File component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-118016 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-118015 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Animation component.CVE-2026-118012 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Animation component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Privilege escalation in the DOM: Navigation component.CVE-2026-118008 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8
Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Mitigation bypass in the DOM: Push Subscriptions component.CVE-2026-117998 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Mitigation bypass in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Privilege escalation in the DOM: UI Events & Focus Handling component.CVE-2026-117995 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Privilege escalation in the DOM: UI Events & Focus Handling component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Site isolation issue in the DOM: Navigation component.CVE-2026-117976 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117968 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Mitigation bypass in the DOM: Security component.CVE-2026-117967 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Incorrect boundary conditions in the DOM: Service Workers component.CVE-2026-117963 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Incorrect boundary conditions in the DOM: Service Workers component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Spoofing issue in the DOM: Core & HTML component.CVE-2026-117960 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Site isolation issue in the DOM: Service Workers component.CVE-2026-117959 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Site isolation issue in the DOM: Service Workers component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117953 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117951 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Incorrect boundary conditions in the DOM: Core & HTML component.CVE-2026-117950 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117949 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117943 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: CSS Object Model component.CVE-2026-117941 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: CSS Object Model component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117940 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117936 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Bindings (WebIDL) component.CVE-2026-117935 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117932 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Events component.CVE-2026-117931 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Events component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Bindings (WebIDL) component.CVE-2026-117930 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117929 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117925 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: HTML Parser component.CVE-2026-117920 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117919 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117901 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Editor component.CVE-2026-117900 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Editor component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117896 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.org
Oct 27, 2026Use-after-free in the DOM: Core & HTML component.CVE-2026-117895 · Computers, phones & browsers · Mozilla · reported by security@mozilla.org
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
Product
Firefox
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record bugzilla.mozilla.org mozilla.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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