CVE-2026-4484

HIGH

Masteriyo LMS <= 2.1.6 - Missing Authorization to Authenticated (Student+) Privilege Escalation to Administrator

Title source: cna

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.

Exploits (2)

nomisec STUB 1 stars

by PegasusMetaSec · poc

https://github.com/PegasusMetaSec/PEGASUS-CVE-2026-4484

View Code ZIP pw:eip

nomisec WORKING POC

by Nxploited · poc

https://github.com/Nxploited/CVE-2026-4484

View Code ZIP pw:eip

References (3)

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

Scores

CVSS v3 8.8

EPSS 0.0004

EPSS Percentile 12.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-862

Status published

Products (1)

masteriyo/Masteriyo LMS – Online Course Builder for eLearning, LMS & Education < 2.1.6

Published Mar 26, 2026

Tracked Since Mar 26, 2026