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CVE-2026-49458
MEDIUM(6.1)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Risk Signal Score25/100 — MITTEL
- CVSS 6.1 — Mittel
- Weniger als 24 Stunden alt
Beschreibung
DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitize(node, { IN_PLACE: true }) accepted same-origin foreign-realm DOM nodes while follow-on checks used parent-realm constructors, causing instanceof checks for forms, named node maps, document fragments, and elements to fail and skip clobber, template-content, and shadow-DOM sanitization branches so executable markup could survive. This issue is fixed in version 3.4.6.
GitHub Advisories
GHSA-hpcv-96wg-7vj8MEDIUM
DOMPurify: Cross-realm IN_PLACE sanitization leaves executable markup intact via realm-bound `instanceof` checks
npm/dompurify→ 3.4.6
GitHub Advisory