CVE-2026-89333 Information disclosure in Tutor LMS – eLearning and online course solution
Authenticated attackers can expose sensitive user data like emails and phone numbers by manipulating the student_id parameter in Tutor LMS.
- 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-2026-89333?
CVE-2026-89333 is a medium-severity vulnerability in themeum Tutor LMS – eLearning and online course solution, published on 19 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.0.8 via the 'student_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to disclose the email address and Tutor profile phone number of arbitrary WordPress users, including Administrators, by iterating over user IDs via the student_id parameter.
Weakness: CWE-639
Which versions are affected by CVE-2026-89333?
How do I fix CVE-2026-89333?
No fix has been published for CVE-2026-89333 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-89333 being exploited?
There is no known exploitation of CVE-2026-89333 in the wild and no public exploit code.
Sources
Also known as GHSA-fjhh-mxpw-32j7.