CVE-2026-47423

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 v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea	Patch
https://github.com/cure53/DOMPurify/releases/tag/3.4.5	Release Notes
https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx	Exploit Vendor Advisory
https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cure53:dompurify:3.4.4:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-14 20:17

Updated : 2026-07-21 19:50

NVD link : CVE-2026-47423

Mitre link : CVE-2026-47423

CVE.ORG link : CVE-2026-47423

JSON object : View

Products Affected

cure53

dompurify

CWE

CWE-79

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

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