CVE-2026-81340: 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 3.7.50 does not perform per-object ownership or capability checks when updating orders through its REST API, allowing users with the Instructor role to modify any order on the site, granting free course enrolment, revoking other users' paid enrolments, and tampering with order notes.

Affected products

• Unknown Masterstudy Lms WordPress Plugin: before 3.7.50 (fixed in 3.7.50)

Published 2026-09-18. Last modified 2026-09-18.