CVE-2026-47423
8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| cure53 | DOMPurify | >= 3.4.4, < 3.4.5 | affected |
Weaknesses
- CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx
- https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea
- https://github.com/cure53/DOMPurify/releases/tag/3.4.5
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