Arbitrary File Upload Vulnerability in MasterStudy LMS Pro Plugin
CVE-2025-4800

8.8HIGH

Key Information:

Vendor

WordPress
Status
Masterstudy Lms Pro
Vendor
CVE Published:
28 May 2025

What is CVE-2025-4800?

The MasterStudy LMS Pro plugin for WordPress is susceptible to arbitrary file uploads due to inadequate file type validation within the stm_lms_add_assignment_attachment function. This vulnerability affects all versions up to and including 4.7.0. Authenticated attackers with Subscriber-level access and above can exploit this flaw to upload unauthorized files on the server, potentially leading to remote code execution and severe security breaches.

Affected Version(s)

MasterStudy LMS Pro * <= 4.7.0

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://stylemixthemes.com/wordpress-lms-plugin/
https://themeforest.net/item/masterstudy-education-center...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Friderika Baranyai
.
CVE-2025-4800 : Arbitrary File Upload Vulnerability in MasterStudy LMS Pro Plugin