Cross Site Scripting

DOMPurify is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to persistent function handlers in ADDATTR and ADDTAGS across multiple sanitize calls, where previously approved attributes or tags continue to bypass sanitization, allowing attackers to inject malicious HTML or...

CVE-2026-65911

In DOMPurify through 3.3.3, function predicates supplied via ADDATTR or ADDTAGS to DOMPurify.sanitize persist in internal state EXTRAELEMENTHANDLING across subsequent sanitize calls on the same instance. If a later call on the same instance provides ADDATTR or ADDTAGS as an array rather than a...