CVE-2025-4800
WordPress vulnerability analysis and mitigation

Overview

The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads in versions up to and including 4.7.0. The vulnerability stems from missing file type validation in the stmlmsaddassignmentattachment function. This security issue was discovered and disclosed on May 28, 2025 (CVE Details).

Technical details

The vulnerability exists due to insufficient file type validation in the stmlmsaddassignmentattachment function. The CVSS v3.1 score for this vulnerability is 8.8 HIGH, indicating its serious nature. The vulnerability affects authenticated users with Subscriber-level access and above (CVE Details, NVD Results).

Impact

The vulnerability allows authenticated attackers with Subscriber-level permissions or higher to upload arbitrary files to the affected site's server. This capability could potentially lead to remote code execution, giving attackers significant control over the affected system (CVE Details).

Mitigation and workarounds

The vulnerability has been patched in version 4.7.1 of the MasterStudy LMS Pro plugin. Site administrators should update to this or a later version immediately to protect against this vulnerability (MasterStudy Changelog).

Additional resources


SourceThis report was generated using AI

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