CVE-2025-27409

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. Prior to version 3.3.3, path traversal is possible in Joplin Server if static file path starts with `css/pluginAssets` or `js/pluginAssets`. The `findLocalFile` function in the `default route` calls `localFileFromUrl` to check for special `pluginAssets` paths. If the function returns a path, the result is returned directly, without checking for path traversal. The vulnerability allows attackers to read files outside the intended directories. This issue has been patched in version 3.3.3.

The following products are affected by CVE-2025-27409 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-27409.

URL	Resource
https://github.com/laurent22/joplin/pull/11916
https://github.com/laurent22/joplin/security/advisories/GHSA-5xv6-7jm3-fmg5