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.
References (4)
Core 4
Core References
Various Sources
https://stylemixthemes.com/wordpress-lms-plugin/
Scores
CVSS v3
8.8
EPSS
0.0159
EPSS Percentile
81.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-434
Status
published
Products (1)
StylemixThemes/MasterStudy LMS Pro
< 4.7.0
Published
May 28, 2025
Tracked Since
Feb 18, 2026