Vulnerability in MasterStudy LMS WordPress Plugin – for Online Courses and Education — CVE-2026-105079

What to do now

Update MasterStudy LMS WordPress Plugin – for Online Courses and Education to 3.7.53 or later.

Affected versions

• Everything up to and including 3.7.52

The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 3.7.52. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/561f4e7a-93ae-480a-accf-d80d6ec105ab?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/561f4e7a-93ae-480a-accf-d80d6ec105ab
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