CVE-2026-65900

A flaw was found in DOMPurify. When configured to sanitize HTML templates for direct Document Object Model DOM output, the software fails to properly remove malicious template expressions. This allows an attacker to inject specially crafted input that bypasses the sanitization process...

CVE-2026-65900

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 element content. The final normalization/scrub pass scrubTemplateExpressions uses...

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...

DOMPurify: SAFE_FOR_TEMPLATES bypass - template expressions survive sanitization inside <template> content when using DOM output modes

Summary When DOMPurify is configured with both SAFEFORTEMPLATES: true and RETURNDOM: true or INPLACE: true, an attacker can inject template expressions, such as $evil, evil, or , that survive the sanitization pass inside element content. This bypasses the explicit purpose of SAFEFORTEMPLATES, whi...