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OpenAdvisories
Medium · 5.4 CVE-2025-13766 EUVD-2026-1068GHSA-76rq-mr82-f3r3

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 Jan 6, 2026 · Updated Apr 8, 2026 · Assigned by Wordfence

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

Affected products

VendorProductAffectedFixed
stylemix MasterStudy LMS WordPress Plugin – for Online Courses and Education ≤ 3.7.6 —

References