Vulnerability Details CVE-2026-47423
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 19.8%
CVSS Severity
CVSS v3 Score 8.2
References