CVE-2026-6965
MEDIUM
5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none
Description
AI Translation Available
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to and including 3.9.9. This is due to the `get_course_id_by()` function unconditionally trusting the user-supplied `course` GET parameter as the authoritative course ID for content ownership lookups, which is then consumed by `can_user_manage()`, the plugin's sole authorization gate for instructor-level operations, causing it to evaluate instructor membership against the attacker-controlled course rather than the course that actually owns the target content object. This makes it possible for authenticated attackers, with instructor-level access and above, to perform unauthorized operations on any other instructor's course content, including permanently deleting lessons, assignments, quizzes (with cascading deletion of all student attempt data), topics, announcements, and Q&A threads, as well as creating or modifying lessons, topics, and announcements in victim courses, manipulating student quiz grades, and reading unpublished lesson and quiz content.
639
Authorization Bypass Through User-Controlled Key
IncompleteCommon Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Ajax.php#L2…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Ajax.php#L5…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Ajax.php#L5…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Announcemen…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Course.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Course.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Lesson.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Lesson.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Lesson.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Q_And_A.php…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Q_And_A.php…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Q_And_A.php…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Quiz.php#L1…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Quiz.php#L1…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Quiz.php#L8…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Utils.php#L…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Utils.php#L…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Ajax.php#L2…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Ajax.php#L5…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Ajax.php#L5…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Announcemen…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Course.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Course.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Lesson.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Lesson.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Lesson.php#…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Q_And_A.php…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Q_And_A.php…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Q_And_A.php…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Quiz.php#L1…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Quiz.php#L1…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Quiz.php#L8…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Utils.php#L…
https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.9/classes/Utils.php#L…
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Ajax.php#L294
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Ajax.php#L507
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Ajax.php#L586
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Announcements.ph…
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L1997
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L2045
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Lesson.php#L186
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Lesson.php#L243
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Lesson.php#L341
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Q_And_A.php#L219
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Q_And_A.php#L297
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Q_And_A.php#L339
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Quiz.php#L1007
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Quiz.php#L1041
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Quiz.php#L888
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Utils.php#L7829
https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Utils.php#L8020
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&ol…
https://www.wordfence.com/threat-intel/vulnerabilities/id/55924ea3-373c-4297-a9…