Description
WordPress Plugin NextGEN Gallery-WordPress Gallery is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly sanitize 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 NextGEN Gallery-WordPress Gallery version 1.9.12 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.9.13 or latest
References
http://permalink.gmane.org/gmane.comp.security.full-disclosure/89587
http://www.gossamer-threads.com/lists/fulldisc/full-disclosure/89997
http://packetstormsecurity.com/files/122021/NextGEN-Gallery-1.9.12-Shell-Upload.html