CVE-2025-6639

The Tutor LMS Pro  eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.8.3 due to missing validation on a user controlled key when viewing and editing assignments through the tutor_assignment_submit() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to view and edit assignment submissions of other students.