CVE-2026-47423 — DOMPurify XSS via `selectedcontent` re-clone
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 pa…
Published: 2026-07-14 · CVSS: 8.2 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7