vulnerability
WordPress Plugin: masterstudy-lms-learning-management-system-pro: CVE-2025-4800: Unrestricted Upload of File with Dangerous Type
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | May 27, 2025 | May 28, 2025 | Apr 30, 2026 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
May 27, 2025
Added
May 28, 2025
Modified
Apr 30, 2026
Description
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 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.
Solution
masterstudy-lms-learning-management-system-pro-plugin-cve-2025-4800
References
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.