Description
WordPress Plugin Frontend File Manager is prone to multiple vulnerabilities, including arbitrary file upload and security bypass vulnerabilities. Exploiting these issues could allow an attacker to upload arbitrary code and run it in the context of the webserver process, which may facilitate unauthorized access or privilege escalation, or to perform otherwise restricted actions and subsequently rename uploaded files from users. WordPress Plugin Frontend File Manager version 21.2 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 21.3 or latest
References
https://sploitus.com/exploit?id=WPEX-ID:00F76765-95AF-4DBC-8C37-F1B15A0E8608
https://sploitus.com/exploit?id=WPEX-ID:D3D9DC9A-226B-4F76-995E-E2AF1DD6B17E
https://plugins.svn.wordpress.org/nmedia-user-file-uploader/trunk/readme.txt