Typemill before 2.24.0 contains a path traversal vulnerability that allows authenticated attackers with Author-level privileges to read arbitrary files outside the content directory by supplying traversal sequences in the path query parameter passed to Storage::getFile() with an empty folder argument. Attackers can bypass traversal-prevention controls in Storage::getFolderPath() to access sensitive files.

Typemill is a flat-file, Markdown-based CMS designed for informational documentation websites. A reflected Cross-Site Scripting (XSS) exists in the login error view template login.twig of versions 2.19.1 and below. The username value can be echoed back without proper contextual encoding when authentication fails. An attacker can execute script in the login page context. This issue has been fixed in version 2.19.2.