high8.8
CVE-2025-27134
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Joplin Project | Joplin | before 3.3.3 |