CVE-2025-13766
MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.6 Missing Authorization to Authenticated (Subscriber+) Posts and Media Creation, Modification and Deletion
mediumMissing Authorization
5.4
CVSS Score
5.4
CVSS Score
medium
Severity
3.7.7
Patched in
1d
Time to patch
Description
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
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NAttack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Low
Confidentiality
Low
Integrity
None
Availability
Technical Details
Affected versions
<=3.7.6PublishedJanuary 5, 2026
Last updatedJanuary 6, 2026
Affected pluginmasterstudy-lms-learning-management-system
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