Vulnerability in Tutor LMS – eLearning and online course solution — CVE-2026-93779

What to do now

Update Tutor LMS – eLearning and online course solution to 4.1.3 or later.

Affected versions

• Everything up to and including 4.1.2

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, 4.1.2 via the init_routes due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to read paid course lesson and topic content without enrollment, retrieve quiz answer keys including the is_correct field before attempting a quiz, and enumerate the email addresses, usernames, and registration data of other users including instructors and administrators. Exploitation requires that the attacker hold a valid Tutor LMS API key/secret pair, which is issued to subscriber-level users through the plugin's API key management feature.

This description is reproduced verbatim from the public vulnerability record.

• https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L135
• https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L376
• https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L418
• https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/classes/RestAPI.php#L460
• https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Author.php#L43
• https://plugins.trac.wordpress.org/browser/tutor/tags/4.0.9/restapi/REST_Course.php#L303

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.