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CVE-2026-4484— Masteriyo LMS <= 2.1.6 - Missing Authorization to Authenticated (Student+) Privilege Escalation to Administrator

Quick assessment

Affected
masteriyo Masteriyo LMS – Online Course Builder for eLearning, LMS & Education
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Masteriyo LMS 2.1.6及之前版本存在安全漏洞，该漏洞源于允许用户通过InstructorsController::prepare_object_for_database函数更新用户角色，可能导致经过身

CVSS 8.8 · High EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-4484

Vulnerability Information
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Vulnerability Title
Masteriyo LMS <= 2.1.6 - Missing Authorization to Authenticated (Student+) Privilege Escalation to Administrator
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Masteriyo LMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Masteriyo LMS 2.1.6及之前版本存在安全漏洞，该漏洞源于允许用户通过InstructorsController::prepare_object_for_database函数更新用户角色，可能导致经过身
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
masteriyo Masteriyo LMS – Online Course Builder for eLearning, LMS & Education * ~ 2.1.6 -

II. Public POCs for CVE-2026-4484

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III. Intelligence Information for CVE-2026-4484

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Patches & Fixes for CVE-2026-4484 (2)

Vendor Advisories for CVE-2026-4484 (1)

IV. Related Vulnerabilities

Same product: Masteriyo LMS – Online Course Builder for eLearning, LMS & Education
Same vendor: masteriyo
Same weakness: CWE-862

V. Comments for CVE-2026-4484

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