Critical advisory for Docat

Advisory overview

Docat is a tool for hosting versioned static documentation. In the affected implementation, an arbitrary file upload vulnerability in the `Upload API` arises because the API does not validate the `uploaded file path or type`. An attacker can overwrite sensitive configuration files or place malicious files on the Docat web server. Depending on deployment context, uploaded content can enable remote code execution or cross-site scripting intended to steal cookies or redirect users to malicious websites. Version 1.6.0 mitigates filename-based path traversal; remediation of unrestricted file types or deployment-dependent malicious-content effects is not established by the verified patch.

Related references

• https://github.com/docat-org/docat/commit/85fc40e8348c6328f488395d03c779517a0913fd
• https://github.com/docat-org/docat/releases/tag/1.6.0
• https://github.com/docat-org/docat/security/advisories/GHSA-jcxj-j5qf-8crw