mailcow: dockerized is an open source groupware/email suite based on docker. A security vulnerability has been identified in mailcow affecting versions prior to 2024-04. This vulnerability is a combination of path traversal and arbitrary code execution, specifically targeting the `rspamd_maps()` function. It allows authenticated admin users to overwrite any file writable by the www-data user by exploiting improper path validation. The exploit chain can lead to the execution of arbitrary commands on the server. Version 2024-04 contains a patch for the issue.

GitHub, Inc. AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L

GitHub, Inc. CWE-22

GitHub, Inc. https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-4m8r-87gc-3vvp [No types assigned]

GitHub, Inc. https://mailcow.email/posts/2024/release-2024-04 [No types assigned]