CVE-2026-81198: Unknown Masterstudy Lms WordPress Plugin

Low severity, CVSS 3.8. EPSS: 0.3% chance of exploitation in the next 30 days.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of a curriculum object before acting on it, allowing authenticated users with the instructor role to delete or modify curriculum sections and materials belonging to courses owned by other instructors.

Affected products

• Unknown Masterstudy Lms WordPress Plugin: before 3.7.46 (fixed in 3.7.46)

Published 2026-09-02. Last modified 2026-09-03.