CVE-2026-65901

DOMPurify through 3.4.6 contains a cross-site scripting vulnerability in INPLACE 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,...

CVE-2026-65901: Improper Neutralization of Input During Web Page Generation

DOMPurify through 3.4.6 contains a cross-site scripting vulnerability in INPLACE 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,...

CVE-2026-65900: Improper Neutralization of Input During Web Page Generation

DOMPurify versions =3.0.0 and before 3.4.8, when configured with SAFEFORTEMPLATES together with a DOM output mode RETURNDOM, RETURNDOMFRAGMENT, or INPLACE, fail to strip template expressions e.g. $evil, evil, inside...

CVE-2026-65904: Improper Check for Unusual or Exceptional Conditions

DOMPurify through 3.3.3 fails to sanitize DOM elements passed via INPLACE mode when the element originates from a different window/realm e.g., an iframe's contentDocument. A cross-realm instanceof check in the private isNode function returns false for foreign-realm nodes, causing DOMPurify to...

CVE-2026-49978

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.7, DOMPurify INPLACE sanitization could skip shadow contents attached to an element inside .content, allowing attacker-controlled markup such as event handlers, JavaScript URLs, or scripts to survive an...

CVE-2026-49978: Improper Neutralization of Input During Web Page Generation

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.7, DOMPurify INPLACE sanitization could skip shadow contents attached to an element inside...

CVE-2026-49459: Improper Neutralization of Input During Web Page Generation

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitizeroot, INPLACE: true could preserve event-handler attributes on an attacker-controlled root when a descendant name clobbered properties checked by isClobbered, because forceRemove...