CVE-2025-27409

Description

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.

Reserved 2025-02-24 | Published 2025-04-30 | Updated 2025-04-30 | Assigner GitHub_M

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

< 3.3.3
affected

References

github.com/...joplin/security/advisories/GHSA-5xv6-7jm3-fmg5

github.com/laurent22/joplin/pull/11916

cve.org (CVE-2025-27409)

nvd.nist.gov (CVE-2025-27409)

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