GHSA-374F-7CHJ-9948 ApostropheCMS sanitize-html: SMIL animation namespace-prefix bypass allows javascript: URI injection (XSS)

Summary sanitize-html 2.17.7 introduced animatesUrlAttribute to block SVG animation elements animate, animateColor, animateMotion, animateTransform, set when their attributeName targets a URL sink like href. However, this check is bypassed when the animation element uses a namespace prefix e.g.,...

ApostropheCMS sanitize-html: SMIL animation namespace-prefix bypass allows javascript: URI injection (XSS)

Summary sanitize-html 2.17.7 introduced animatesUrlAttribute to block SVG animation elements animate, animateColor, animateMotion, animateTransform, set when their attributeName targets a URL sink like href. However, this check is bypassed when the animation element uses a namespace prefix e.g.,...

NPM: ApostropheCMS sanitize-html: SMIL animation namespace-prefix bypass allows javascript: URI injection (XSS)

NPM: ApostropheCMS sanitize-html: SMIL animation namespace-prefix bypass allows javascript: URI injection XSS vulnerability discovered by ? in WordPress Npm sanitize-html versions = 2.17.7, 2.18.0...

CVE-2026-113657

The sanitize-html library (versions 2.17.7 through 2.18.0 ) used by ApostropheCMS contains a vulnerability where an application configuration permitting namespace-prefixed SVG animation elements can bypass SMIL URL protection . Because prefixed tag names do not match the unprefixed animation-elem...

CVE-2026-113657 ApostropheCMS sanitize-html: SMIL animation namespace-prefix bypass allows javascript: URI injection (XSS)

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From sanitize-html 2.17.7 until 2.18.0, an application configuration that permits namespace-prefixed SVG animation elements and the relevant URL-targeting...

CVE-2026-113657 ApostropheCMS sanitize-html: SMIL animation namespace-prefix bypass allows javascript: URI injection (XSS)

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From sanitize-html 2.17.7 until 2.18.0, an application configuration that permits namespace-prefixed SVG animation elements and the relevant URL-targeting...

GO-2026-5201 SiYuan vulnerable to reflected XSS via SVG namespace prefix bypass in SanitizeSVG (getDynamicIcon, unauthenticated) in github.com/siyuan-note/siyuan/kernel

SiYuan vulnerable to reflected XSS via SVG namespace prefix bypass in SanitizeSVG getDynamicIcon, unauthenticated in github.com/siyuan-note/siyuan/kernel...

CVE-2026-34605

SiYuan 3.6.0–3.6.1 suffer a bypass of the SanitizeSVG XSS fix on the unauthenticated /api/icon/getDynamicIcon endpoint. The Go HTML5 parser records namespace-prefixed SVG tags as x:script, allowing the tag to bypass the numeric sprite check; when served as image/svg+xml without a CSP, the browser...

CVE-2026-34605 SiYuan: Reflected XSS via SVG namespace prefix bypass in SanitizeSVG ( getDynamicIcon, unauthenticated )

SiYuan is a personal knowledge management system. From version 3.6.0 to before version 3.6.2, the SanitizeSVG function introduced in version 3.6.0 to fix XSS in the unauthenticated /api/icon/getDynamicIcon endpoint can be bypassed by using namespace-prefixed element names such as . The Go HTML5...