CVE-2026-49459

Description

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitize(root, { IN_PLACE: true }) could preserve event-handler attributes on an attacker-controlled <form> root when a descendant name clobbered properties checked by _isClobbered, because _forceRemove no-opped on the parent-less root and _sanitizeAttributes returned early. This issue is fixed in version 3.4.6.

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Produits concernés

• cure53 DOMPurify

Scores CVSS

Faiblesses (CWE)

• CWE-79
• CWE-693
• CWE-1321

Références

• https://github.com/cure53/DOMPurify/commit/bb7739e5bccec7e1ab3dae3f3e42d02db3acaaae Patch
• https://github.com/cure53/DOMPurify/releases/tag/3.4.6 Release Notes
• https://github.com/cure53/DOMPurify/security/advisories/GHSA-r47g-fvhr-h676 ExploitMitigationVendor Advisory
• https://github.com/cure53/DOMPurify/security/advisories/GHSA-r47g-fvhr-h676 ExploitMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories