Vulnerability 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, 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Joplin Project | Joplin | < 3.3.3 |
Related Weaknesses (CWE)
References
- https://github.com/laurent22/joplin/commit/12baa9827dac9da903f244c9f358e3deb264ePatch
- https://github.com/laurent22/joplin/security/advisories/GHSA-xj67-649m-3p8xExploitVendor Advisory
- https://github.com/laurent22/joplin/security/advisories/GHSA-xj67-649m-3p8xExploitVendor Advisory
FAQ
What is CVE-2025-27134?
CVE-2025-27134 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...
How severe is CVE-2025-27134?
CVE-2025-27134 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-27134?
Check the references section above for vendor advisories and patch information. Affected products include: Joplin Project Joplin.