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CVE PROGRAM SOURCE RECORD8.2 High

CVE-2026-47423

DOMPurify XSS via `selectedcontent` re-clone

Description

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside <selectedcontent> is returned. This issue is fixed in version 3.4.5.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

cure53 DOMPurify

  • >= 3.4.4, < 3.4.5affected

References