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Outdated HTML Sanitizer Allows Malicious Scripts to Bypass Protection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

Text Editor Component Allows Malicious Scripts via Embedded Images

medium

Your website uses TinyMCE, a popular text editor that lets users write and format content. A security gap in versions before 7.0.0 means that if someone embeds a specially crafted image file (an SVG) using certain HTML elements, it could carry hidden malicious code. Think of it like a picture frame that secretly contains a hidden compartment — the image looks normal, but something harmful is tucked inside.

Exploitable Effort: small
xss tinymce svg embed +5
5 min read Feb 18, 2026