Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Template.php
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Utils.php#L2
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profi
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profi
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profi
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3700174%40tutor&new=3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/244051ef-5357-4b16-b69
FAQ
What is CVE-2026-89333?
CVE-2026-89333 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 d...
How severe is CVE-2026-89333?
CVE-2026-89333 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-89333?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.