CVE-2025-4800

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

https://www.wordfence.com/threat-intel/vulnerabilities/id/c170a228-4abd-4ee6-ba37-bdcde1cb7fc5?source=cve

https://www.wordfence.com/blog/2025/05/15000-wordpress-sites-affected-by-arbitrary-file-upload-vulnerability-in-masterstudy-lms-pro-wordpress-plugin/

https://themeforest.net/item/masterstudy-education-center-wordpress-theme/12170274/

https://stylemixthemes.com/wordpress-lms-plugin/

https://docs.stylemixthemes.com/masterstudy-lms/changelog-pro-version

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS