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, a privilege escalation vulnerability exists in the Joplin server, allowing non-admin users to exploit the API endpoint `PATCH /api/users/:id` to set the `is_admin` field to 1. The vulnerability allows malicious low-privileged users to perform administrative actions without proper authorization. This issue has been patched in version 3.3.3.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Link | Tags |
|---|---|
| https://github.com/laurent22/joplin/security/advisories/GHSA-xj67-649m-3p8x | vendor advisory exploit |
| https://github.com/laurent22/joplin/commit/12baa9827dac9da903f244c9f358e3deb264e228 | patch |