CVE-2025-6639 Missing authorization in Tutor LMS Pro
Authenticated attackers can view and edit other students' assignment submissions due to missing authorization checks in Tutor LMS Pro.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-6639?
CVE-2025-6639 is a medium-severity missing authorization vulnerability in themeum Tutor LMS Pro, published on 25 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-285
Which versions are affected by CVE-2025-6639?
How do I fix CVE-2025-6639?
No fix has been published for CVE-2025-6639 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-6639 being exploited?
There is no known exploitation of CVE-2025-6639 in the wild and no public exploit code.
Sources
Also known as GHSA-6qx8-8q59-x2rm.