CVE-2025-6639: Themeum Tutor Lms Pro

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Themeum Tutor Lms Pro: up to and including 3.8.3

Published 2025-10-25. Last modified 2026-10-08.