CVE-2026-39524 HIGH

CVE-2026-39524: WordPress Masteriyo - LMS plugin <= 2.1.5 - Payment Bypass vulnerability

Vendor Themegrill

Product Masteriyo - LMS

Weakness CWE-862 · Missing authorization

Published June 15, 2026

Last update June 15, 2026

View on NVD All CVEs

CVSS base score

7.5/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality None

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Broken Access Control in Masteriyo - LMS <= 2.1.5 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Masteriyo LMS through version 2.1.5 lacks proper authorization checks, allowing unauthenticated attackers to modify course content and settings. An attacker can change course data, student enrollments, or other critical LMS configuration without logging in. This affects all installations running the vulnerable version. Update to a version newer than 2.1.5 to resolve the issue.

What an attacker can do

03Attacker Capabilities

Modify course content, settings, and student data without authentication.

Potential impact on your site

04Site Impact

Course content and enrollments can be altered or deleted by anyone on the internet.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

June 15, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-39524 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

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