CVE-2026-47423
HIGH
NVD
CVSS Score
8.2
Severity
HIGH
Published
Jul 14, 2026
Vendor
unknown
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.