CVE-2025-13766 json
MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.6 Missing Authorization to Authenticated (Subscriber+) Posts and Media Creation, Modification and Deletion
published 2026-01-06 10 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-1068
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 6%
- public exploits
- 0
- none known
Summary
The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to unauthorized modification and deletion of data due to a missing capability checks on multiple REST API endpoints in all versions up to, and including, 3.7.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload or delete arbitrary media files, delete or modify posts, and create/manage course templates
Patch / fix
- stylemixthemes masterstudy_lms 3.7.7
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 10 mo ago
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Affected products
- stylemix MasterStudy LMS WordPress Plugin – for Online Courses and Education
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
Sources
- CVE List CVE-2025-13766
- NVD CVE-2025-13766
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.