CVE-2026-57330
MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.7.27 - Authenticated (Subscriber+) Stored Cross-Site Scripting
mediumImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
6.4
CVSS Score
6.4
CVSS Score
medium
Severity
3.7.28
Patched in
9d
Time to patch
Description
The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.7.27 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NAttack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Low
Confidentiality
Low
Integrity
None
Availability
Technical Details
Affected versions
<=3.7.27PublishedJune 29, 2026
Last updatedJuly 7, 2026
Affected pluginmasterstudy-lms-learning-management-system
Source Code
WordPress.org SVNVulnerable v3.7.26
Patched
Patched version not available.
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