CVE-2024-2409: Stylemixthemes Masterstudy Lms

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

The MasterStudy LMS plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.3.1. This is due to insufficient validation checks within the _register_user() function called by the 'wp_ajax_nopriv_stm_lms_register' AJAX action. This makes it possible for unauthenticated attackers to register a user with administrator-level privileges when MasterStudy LMS Pro is installed and the LMS Forms Editor add-on is enabled.

Affected products

• Stylemixthemes Masterstudy Lms: before 3.3.2 (fixed in 3.3.2)

Published 2024-03-29. Last modified 2026-06-17.