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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

PUBLISHED Reserved 2025-11-27 | Published 2026-01-06 | Updated 2026-01-06 | Assigner Wordfence




MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Problem types

CWE-862 Missing Authorization

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-10-26:Discovered
2025-11-27:Vendor Notified
2026-01-05:Disclosed

Credits

thinnawarth mathuros finder

References

www.wordfence.com/...-90dc-470b-9270-8578e0cead59?source=cve

plugins.trac.wordpress.org/changeset/3422825/

cve.org (CVE-2025-13766)

nvd.nist.gov (CVE-2025-13766)

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