CVE-2026-65901

DOMPurify through 3.4.6 contains a cross-site scripting vulnerability in IN_PLACE mode that trusts attacker-controlled nodeName on live non-form nodes. Attackers can supply hostile live DOM objects with real script children whose observable nodeName is clobbered to appear as allowed elements, causing scripts to execute when the sanitized tree is inserted into a live document.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4	Exploit Third Party Advisory
https://www.vulncheck.com/advisories/dompurify-cross-site-scripting-via-in-place-nodename	Third Party Advisory
https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) DOMPurify hasta la versión 3.4.6 contiene una vulnerabilidad de cross-site scripting en modo IN_PLACE que confía en el nodeName controlado por el atacante en nodos activos que no son de formulario. Los atacantes pueden suministrar objetos DOM activos hostiles con hijos de script reales cuyo nodeName observable es sobrescrito para aparecer como elementos permitidos, lo que provoca la ejecución de scripts cuando el árbol saneado se inserta en un documento activo.

Information

Published : 2026-07-23 14:18

Updated : 2026-10-24 13:10

NVD link : CVE-2026-65901

Mitre link : CVE-2026-65901

CVE.ORG link : CVE-2026-65901

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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