The Academy LMS WordPress plugin before 3.8.1 does not verify ownership of a user-supplied user identifier in several of its lesson AJAX handlers, allowing authenticated users with subscriber-level access to read and modify other users' lesson notes and mark other users' lesson content as completed.

The Academy LMS WordPress plugin through 3.8.2 does not restrict access to quiz attempt records to their owner, allowing any authenticated user with subscriber-level access and above (enrolled in any single course) to read every user's quiz attempts across the whole site, including personal data such as IP addresses, names, registration dates and quiz results.