CVE-2025-4800CWE-434

MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload

High · published May 28, 2025

CVSS v3.1
8.8
EPSS
1%
Percentile
66.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01146 · 66.5th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2025-05-28T05:24Z
EPSS history
Timeline
  • 28 MAY 05:24Z
    MasterStudy LMS Pro <= 4.7.0 - Authenticated (Subscriber+) Arbitrary File Upload
    cvelistv5