PT-2026-84574

BookStack before 26.05.4 contains a stored cross-site scripting vulnerability in the drawing upload endpoint that accepts unvalidated base64 content and stores it without content inspection. Attackers with editor permissions can upload SVG files containing scripts that execute in administrator...

PT-2026-84796

Jenkins Customizable Header Plugin 295.v2544b ca 19b 97 and earlier allows overwriting the plugin's appearance configuration through Stapler data binding, allowing attackers to configure a custom SVG icon containing inline JavaScript, resulting in a stored cross-site scripting XSS vulnerability...

CVE-2026-84673: Improper Neutralization of Input During Web Page Generation

Jenkins Customizable Header Plugin 295.v2544bca19b97 and earlier allows overwriting the plugin's appearance configuration through Stapler data binding, allowing attackers to configure a custom SVG icon containing inline JavaScript, resulting in a stored cross-site scripting XSS vulnerability...

CVE-2026-84695: Improper Neutralization of Input During Web Page Generation

BookStack before 26.05.4 contains a stored cross-site scripting vulnerability in the drawing upload endpoint that accepts unvalidated base64 content and stores it without content inspection. Attackers with editor permissions can upload SVG files containing scripts that execute in administrator...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the removeScripts plugin due to incomplete filtering of executable links in plugins/removeScripts.js and lib/svgo/tools.js. An attacker can execute arbitrary scripts in the context of the SVG's origin, expose...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the removeScriptElement plugin, which fails to strip SVG event attributes e.g. onclick, onload, javascript: and vbscript: scheme URLs, executable data: URLs, and srcdoc attributes inside foreignObject...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the removeScriptElement plugin, which fails to strip SVG event attributes e.g. onclick, onload, javascript: and vbscript: scheme URLs, executable data: URLs, and srcdoc attributes inside foreignObject...

ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

Summary When SVG animation is allowed, attributeName="href" makes values a list of URL destinations. sanitize-html accepts a list that starts with a safe fragment even when values is explicitly scheme-checked, allowing a later javascript: destination to execute when the sanitized link is activate...

NPM: ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

NPM: ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass vulnerability discovered by ? in WordPress Npm sanitize-html versions = 1.9.0, = 2.17.6...

Cross-site Scripting (XSS)

Overview sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis Affected versions of this package are vulnerable to Cross-site Scripting XSS via the SVG SMIL animation handling in...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the SVG SMIL animation handling in packages/sanitize-html/index.js. An attacker can execute JavaScript in the application’s origin by supplying an allowed or element with attributeName="href" or xlink:href"...

GHSA-G8QQ-57P8-GGW5 ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

Summary When SVG animation is allowed, attributeName="href" makes values a list of URL destinations. sanitize-html accepts a list that starts with a safe fragment even when values is explicitly scheme-checked, allowing a later javascript: destination to execute when the sanitized link is activate...

CVE-2026-84371

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From version 1.9.0 until version 2.17.7, packages/sanitize-html/index.js validates an animation value attribute as one flat URL and does not recognize that...

CVE-2026-84369

SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 1.0.0 until versions 2.8.4, 3.3.5, and 4.1.0, the opt-in removeScripts plugin, named removeScriptElement in versions 2 and 3 and implemented in plugins/removeScripts.js, removes...

CVE-2026-84370

SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 1.0.0 until versions 2.8.4, 3.3.5, and 4.1.0, the opt-in removeScripts plugin, named removeScriptElement in versions 2 and 3, incompletely filters executable links in...

CVE-2026-84371 ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From version 1.9.0 until version 2.17.7, packages/sanitize-html/index.js validates an animation value attribute as one flat URL and does not recognize that...

EUVD-2026-69654

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From version 1.9.0 until version 2.17.7, packages/sanitize-html/index.js validates an animation value attribute as one flat URL and does not recognize that...

CVE-2026-84371

ApostropheCMS (Node.js CMS) shipped a sanitize-html package vulnerable to stored XSS via SVG SMIL animation elements from version 1.9.0 through 2.17.7 . The root cause is in packages/sanitize-html/index.js, which validates the values attribute as a single flat URL, failing to account for SVG SMIL...

CVE-2026-84371 ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From version 1.9.0 until version 2.17.7, packages/sanitize-html/index.js validates an animation value attribute as one flat URL and does not recognize that...

CVE-2026-84371 ApostropheCMS: Stored XSS via SVG SMIL URI-list scheme-policy bypass

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From version 1.9.0 until version 2.17.7, packages/sanitize-html/index.js validates an animation value attribute as one flat URL and does not recognize that...