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OpenAdvisories
High · 8.8 Public exploit CVE-2026-4484 EUVD-2026-16074GHSA-6m8q-32w5-c768

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

Published Mar 26, 2026 · Updated Apr 8, 2026 · Assigned by Wordfence

Vendor: masteriyo Product: Masteriyo LMS – Online Course Builder for eLearning, LMS & Education Category: Web / CMS

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.

Affected products

VendorProductAffectedFixed
masteriyo Masteriyo LMS – Online Course Builder for eLearning, LMS & Education ≤ 2.1.6 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • Nxploited/CVE-2026-4484 ★ 0 · Apr 18, 2026

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

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References