Arbitrary file upload in Stylemixthemes Masterstudy Lms Pro

CVE-2025-4800

The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads due to a missing file type validation in the stm_lms_add_assignment_attachment function in all versions up to, and including, 4.7.0. This makes it possibl…

Vulnerability class: Unrestricted File Upload

EPSS: 0.016 (82.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-4800?
CVE-2025-4800 is a high-severity vulnerability in Stylemixthemes Masterstudy Lms Pro, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-05-28.
How severe is CVE-2025-4800?
High severity. CVSS v3 base score is 8.8 out of 10.