CVE-2026-47423

Published: Jul 14, 2026Modified: Jul 21, 2026

8.2

Vector

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

Exploitability: 2.8 / Impact: 4.7

Source: security-advisories@github.com (Secondary)

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.

Affected (1)

Products: Cure53: Dompurify

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Cure53 Dompurify	Version 3.4.4

Related CWEs

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea

Source: security-advisories@github.com

Patch

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

Source: security-advisories@github.com

Release Notes

https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx

Source: security-advisories@github.com

ExploitVendor Advisory

https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitVendor Advisory

Timeline

No history available yet.