CVE-2026-65913

DOMPurify before 3.3.2 contains a prototype pollution vulnerability in USEPROFILES mode that allows attackers to bypass attribute filtering by polluting Array.prototype properties. Attackers can set Array.prototype properties like onclick to true, causing DOMPurify to accept event handlers as...

CVE-2026-65913 DOMPurify before 3.3.2 Prototype Pollution via USE_PROFILES

DOMPurify before 3.3.2 contains a prototype pollution vulnerability in USEPROFILES mode that allows attackers to bypass attribute filtering by polluting Array.prototype properties. Attackers can set Array.prototype properties like onclick to true, causing DOMPurify to accept event handlers as...

CVE-2026-65913

DOMPurify prior to 3.3.2 is affected by a prototype pollution vulnerability in USE_PROFILES mode. An attacker can pollute Array.prototype properties (e.g., onclick) to bypass attribute filtering, causing DOMPurify to treat event handler attributes as allowed. This enables DOM-based XSS when sanit...

Prototype Pollution

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Prototype Pollution in the USEPROFILES function. An attacker can execute arbitrary JavaScript code in the context of the user’s browser by polluting...

GHSA-CJ63-JHHR-WCXV DOMPurify USE_PROFILES prototype pollution allows event handlers

Summary When USEPROFILES is enabled, DOMPurify rebuilds ALLOWEDATTR as a plain array before populating it with the requested allowlists. Because the sanitizer still looks up attributes via ALLOWEDATTRlcName, any Array.prototype property that is polluted also counts as an allowlisted attribute. An...

DOMPurify USE_PROFILES prototype pollution allows event handlers

Summary When USEPROFILES is enabled, DOMPurify rebuilds ALLOWEDATTR as a plain array before populating it with the requested allowlists. Because the sanitizer still looks up attributes via ALLOWEDATTRlcName, any Array.prototype property that is polluted also counts as an allowlisted attribute. An...

PT-2026-63993

Name of the Vulnerable Software and Affected Versions DOMPurify versions prior to 3.3.2 Description When operating in USE PROFILES mode, the software is susceptible to prototype pollution. This occurs when attackers pollute Array.prototype properties, such as setting onclick to true, to bypass...