CVE-2026-4484
Masteriyo LMS <= 2.1.6 - Missing Authorization to Authenticated (Student+) Privilege Escalation to Administrator
- State
- Published
- Severity
- 8.8 High
- Published
- Mar 26, 2026
- Updated
- Apr 8, 2026
- Reserved
- Mar 20, 2026
Description
The Masteriyo LMS plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.1.6. This is due to the plugin allowing a user to update the user role through the 'InstructorsController::prepare_object_for_database' function. This makes it possible for authenticated attackers, with Student-level access and above, to elevate their privileges to that of an administrator.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Wordfence |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
Masteriyo LMS – Online Course Builder for eLearning, LMS & Educationmasteriyo |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/265be0af-66a4-4636-ab81-f8e2c5a1282e?source=cve
- https://plugins.trac.wordpress.org/browser/learning-management-system/tags/2.1.6/includes/RestApi/Controllers/Version1/InstructorsController.php#L305
- https://plugins.trac.wordpress.org/changeset/3490792/learning-management-system/trunk/includes/RestApi/Controllers/Version1/InstructorsController.php
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