source: http://www.securityfocus.com/bid/11983/info

JSBoard is reported prone to a vulnerability that can allow a remote attacker to upload arbitrary PHP scripts to a vulnerable server. This issue results from insufficient sanitization of user-supplied input.

If successful, the attacker can execute arbitrary script code on a vulnerable server. This can lead to unauthorized access in the context of the application.

This issue was identified in versions of JSBoard 2.0.8 and prior and JSBoard-win32 1.3.11a prior. 

Script file name:
attack.php.hwp