CVE-2025-7438: 
WordPress vulnerability analysis and mitigation

The MasterStudy LMS Pro plugin for WordPress is vulnerable to arbitrary file uploads (CVE-2025-7438) due to insufficient file type validation in the 'install_and_activate_plugin' function in versions up to and including 4.7.9. The vulnerability was discovered and disclosed on July 18, 2025 (NVD CVE).

The vulnerability exists in the 'install_and_activate_plugin' function which lacks proper file type validation. This affects authenticated users with Subscriber-level access and above. The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. The weakness is classified as CWE-434 (Unrestricted Upload of File with Dangerous Type) (NVD CVE).

If exploited, this vulnerability allows authenticated attackers to upload arbitrary files to the affected site's server, potentially leading to remote code execution. However, the exploitation is noted to be difficult due to timing requirements and environmental factors (NVD CVE).

The vulnerability has been patched in version 4.7.10 of the MasterStudy LMS Pro plugin. Users are advised to update to this version or later to mitigate the risk (MasterStudy Changelog).