CVE-2025-4800
MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-434 |
| Vendor | stylemixthemes |
| Product | masterstudy lms pro |
| Published | May 28, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
StylemixThemes / MasterStudy LMS Pro
0 ≤ 4.7.0
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/c170a228-4abd-4ee6-ba37-bdcde1cb7fc5?source=cve stylemixthemes.com: https://stylemixthemes.com/wordpress-lms-plugin/ themeforest.net: https://themeforest.net/item/masterstudy-education-center-wordpress-theme/12170274/ docs.stylemixthemes.com: https://docs.stylemixthemes.com/masterstudy-lms/changelog-pro-version
Credits
Friderika Baranyai