CVE-2026-88847: Unknown Masterstudy Lms WordPress Plugin

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that a user is enrolled in a course before recording lesson completions against it, allowing any authenticated user, such as a subscriber, to create course progress records for courses they have no access to.

Affected products

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

Published 2026-09-24. Last modified 2026-09-24.