CVE-2026-89333
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
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.
References
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Template.php#L503
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/classes/Utils.php#L2841
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L132
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L137
- https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.8/templates/user-profile.php#L21
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3700174%40tutor&new=3700174%40tutor
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