CVE-2025-7438: high-severity vulnerability in StylemixThemes MasterStudy LMS Pro
MasterStudy LMS – Online Courses, eLearning PRO Plus <= 4.7.9 - Authenticated (Subscriber+) Arbitrary File Upload
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.7%
The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'install_and_activate_plugin' function in all versions up to, and including, 4.7.9. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The vulnerability is difficult to exploit due to timing requirements and environmental factors.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
StylemixThemes · MasterStudy LMS ProRelated CVEs — StylemixThemes MasterStudy LMS Pro
In the same product, most dangerous first.
CVE-2025-4800HIGHMasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 1.2%CVE-2025-64213HIGHWordPress MasterStudy LMS Pro plugin < 4.7.16 - Sensitive Data Exposure vulnerabilityEPSS 0.4%CVE-2025-64214HIGHWordPress MasterStudy LMS Pro plugin < 4.7.16 - Arbitrary Content Deletion vulnerabilityEPSS 0.4%CVE-2026-8653MEDIUMMasterStudy LMS Pro Plus <= 4.8.20 - Authenticated (Instructor+) SQL Injection via 'columns' ParameterEPSS 0.2%CVE-2025-64212MEDIUMWordPress MasterStudy LMS Pro plugin < 4.7.16 - Broken Access Control vulnerabilityEPSS 0.2%CVE-2025-64215MEDIUMWordPress MasterStudy LMS Pro plugin < 4.7.16 - Broken Access Control vulnerabilityEPSS 0.2%