CVE-2025-27134
joplin vulnerability - joplin_project
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.
Affected Systems
| Vendor | joplin_project |
| Product | joplin |
| Affected Versions | before 3.3.3 |
| CWE ID | CWE-284 |
Mitigation
Apply the latest security patches from the vendor, restrict network exposure where applicable, and monitor for exploitation attempts.
Fix Instructions
Refer to the vendor advisory and apply the latest security updates. See references for detailed patching instructions.
References
Risk Assessment
CVSS: 8.8/10
| Exploit Available | Unknown |
| Patch Available | Yes |
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