CVE-2026-65901

Medium

Description

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.

SeverityMedium

CVSS6.1

Exploit probability—

ProductCure53 Dompurify

PublishedJul 23, 2026

First seenJul 23, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

cure53 dompurify3.4.7 or later

Vendor advisories

github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4

Affected products

Product	Affected versions	Fixed in
cure53 dompurify	v < 3.4.7	3.4.7
dompurifynpm	v ≤ 3.4.6	—

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