Medium severity · published Jan 6, 2026
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
5.4
CVSS
0.2%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ML
MasterStudy LMS WordPress Plugin – for Online Courses and Education · stylemix
through 3.7.6 · source: vendor
Affected product
ML
MasterStudy LMS WordPress Plugin – for Online Courses and Education
stylemix
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13766
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13766
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3422825/
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/2719739a-90dc-470b-9270-8578e0cead59?source=cve
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