Home

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.

PUBLISHED Reserved 2026-05-19 | Published 2026-07-14 | Updated 2026-07-14 | Assigner GitHub_M




HIGH: 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

>= 3.4.4, < 3.4.5
affected

References

github.com/...Purify/security/advisories/GHSA-87xg-pxx2-7hvx

github.com/...ommit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea

github.com/cure53/DOMPurify/releases/tag/3.4.5

cve.org (CVE-2026-47423)

nvd.nist.gov (CVE-2026-47423)

Download JSON