vBulletin 4.x.x 'visitormessage.php' Remote Code Injection Vulnerability

Exploit Title: vBulletin 4.x.x 'visitormessage.php' Remote Code Injection Vulnerability + Discovered By: Dariush Nasirpour Net.Edit0r + My Homepage: black-hg.org / nasirpour.info + Date: 2015 27 February + Vendor Homepage: vBulletin.com + Tested on: vBulletin 4.2.2 + Greeting : Ali Razmjoo -...