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OpenAdvisories
Low · 3.8 CVE-2026-81340 EUVD-2026-82658GHSA-332v-j356-q3mj

MasterStudy LMS < 3.7.50 - Instructor+ Order Status Manipulation via IDOR

Published Sep 18, 2026 · Updated Sep 18, 2026 · Assigned by WPScan

Description

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

VendorProductAffectedFixed
— MasterStudy LMS WordPress Plugin < 3.7.50 3.7.50

References