Description
WordPress Plugin NextGEN Gallery-WordPress Gallery is prone to an information disclosure vulnerability because it fails to properly sanitize user-supplied input. Attackers can exploit this issue to obtain sensitive information that may help in launching further attacks. WordPress Plugin NextGEN Gallery-WordPress Gallery version 1.9.11 is vulnerable; other versions may also be affected.
Remediation
Update to plugin version 1.9.12 or latest
References
http://www.securityfocus.com/bid/57957/exploit