WP Courses LMS < 3.2.4 - Missing Authorization

Description

The plugin is vulnerable to unauthorized modification of data due to missing capability checks on several functions in the ~/ajax/ajax-lesson-order.php file hooked via AJAX in all versions up to, and including, 3.2.3. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform several actions such as adding, deleting and renaming lesson modules.