Unauthorized Access Vulnerability in MasterStudy LMS Plugin for WordPress
CVE-2026-88847

Currently unrated

Key Information:

Vendor

WordPress

Vendor
CVE Published:
24 September 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-88847?

The MasterStudy LMS WordPress plugin, prior to version 3.7.50, contains a vulnerability that compromises the enrollment verification process. It permits any authenticated user, including those with subscriber-level accounts, to inaccurately record lesson completions for courses they are not enrolled in. This flaw exposes the system to potential misuse, allowing users to manipulate course progress and gain undeserved learning credentials.

Affected Version(s)

MasterStudy LMS WordPress Plugin 0 < 3.7.50

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Arman Kumar
WPScan
.