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Outdated HTML Sanitizer Library Allows Script Injection on Your Website

high

Your website uses a popular library called DOMPurify to clean up user-submitted content before displaying it — think of it like a filter that strips out dangerous code. A flaw in the version you're running means that filter has a gap: under specific conditions, a crafted piece of content can slip through and run malicious code in a visitor's browser. A patch is already available and the fix is a straightforward version upgrade.

Exploitable Effort: trivial
xss dompurify sanitizer-bypass cve +4
4 min read Mar 13, 2026

Outdated HTML Sanitizer Allows Script Injection in Specific Contexts

high

Your application uses a library called DOMPurify to clean up untrusted content (like user-submitted text) before displaying it on your website. A flaw in the version you're running means that cleaning process can be bypassed under specific conditions, potentially allowing malicious scripts to run in a visitor's browser. Upgrading to the latest version closes the gap.

Exploitable Effort: small
xss dompurify sanitizer-bypass rawtext +4
4 min read Mar 13, 2026

Outdated HTML Sanitizer Can Be Bypassed to Inject Malicious Scripts

medium

Your website uses a library called DOMPurify to clean up user-submitted content before displaying it — think of it like a filter that strips out dangerous code. A flaw in older versions of this library means the filter can be tricked under specific conditions, allowing malicious scripts to slip through. This only affects sites that have enabled a particular non-default setting called SAFE_FOR_TEMPLATES.

Exploitable Effort: trivial
xss mxss dompurify frontend +5
4 min read Feb 18, 2026

Outdated HTML Sanitizer Allows Malicious Scripts to Bypass Protection

high

Your website uses a library called DOMPurify to clean up untrusted content before displaying it to users — think of it like a filter that strips out dangerous code. A flaw in the version you're running means that filter can be tricked into letting harmful scripts through. An attacker who can submit content to your site (e.g. via a form, comment box, or rich-text editor) could exploit this to run malicious code in your visitors' browsers.

Exploitable Effort: small
xss prototype-pollution dompurify cve +4
4 min read Feb 18, 2026

Broken HTML Filter Lets Attackers Run Malicious Code in Users' Browsers

immediate

Your website uses a popular library called DOMPurify to clean up user-submitted content before displaying it — think of it like a bouncer checking IDs at the door. A flaw in older versions of this library means the bouncer can be tricked by a specific type of disguised content, allowing malicious code to slip through and run in your visitors' browsers. This is a confirmed, actively exploitable issue with public attack code available.

Exploitable Effort: trivial
xss mxss dompurify frontend +5
4 min read Feb 18, 2026