Description
WordPress Plugin Frontend File Manager is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly verify user-supplied input. An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin Frontend File Manager version 3.7 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 3.8 or latest
References
http://www.openwall.com/lists/oss-security/2015/06/10/2
https://wordpress.org/plugins/nmedia-user-file-uploader/changelog/