CVE-2026-44401
Description
Typemill CMS version 2.x contains a persistent cross-site scripting vulnerability in the Markdown parser extension that allows authenticated users with theme-configuration access to inject malicious JavaScript URIs by supplying unsanitized href values in Markdown links. Attackers can craft Markdown links using the javascript: scheme through ParsedownExtension.php or TwigMarkdownExtension.php, storing a persistent payload that executes in the browser of every visitor who clicks the link, enabling session cookie theft, authenticated request forgery, and credential harvesting.
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Typemill Typemill | 2.0.0 ≤ v ≤ 2.23.0 | — |
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Attack Surface Management
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