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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Masterstudy Lms Learning Management System Plugin | — | Update masterstudy-lms-learning-management-system plugin to version 3.3.2, or a newer patched version | May 15, 2025 | Mar 28, 2024 |
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