CVE-2026-47423highCWE-79

CVE-2026-47423: high-severity vulnerability in cure53 DOMPurify

DOMPurify XSS via `selectedcontent` re-clone

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.2epss 0.4%
from disclosure to weaponsame day
Published on NVDJul 14
1st PoCJun 3
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Affected products
cure53 · DOMPurify
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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