CVE-2025-27134 — Privilege escalation in Joplin server via user patch endpoint
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 escalatio…
Published: 2025-04-30 · CVSS: 8.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7