CVE-2025-27134
HIGHCVSS v3
8.8
HIGH
EPSS Score
13.4%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical Details
- Published
- 4/30/2025
Frequently Asked Questions
What is 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. 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.
Is CVE-2025-27134 actively exploited?
Active exploitation of CVE-2025-27134 has not been confirmed. The EPSS score is 13.4%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-27134?
CVE-2025-27134 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2025-27134 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.