CVE-2026-4484: Masteriyo Lms – Online Course Builder For Elearning, Lms & Education

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

The Masteriyo LMS plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.1.6. This is due to the plugin allowing a user to update the user role through the 'InstructorsController::prepare_object_for_database' function. This makes it possible for authenticated attackers, with Student-level access and above, to elevate their privileges to that of an administrator.

Affected products

• Masteriyo Masteriyo Lms – Online Course Builder For Elearning, Lms & Education: up to and including 2.1.6

Published 2026-03-26. Last modified 2026-06-17.