[原文]PHP remote file inclusion vulnerability in VBulletin 3.5.1, 3.5.2, and 3.5.4 allows remote attackers to execute arbitrary code via a URL in the systempath parameter to (1) ImpExModule.php, (2) ImpExController.php, and (3) ImpExDisplay.php.
vBulletin ImpEx Module contains a flaw that may allow a remote attacker to execute arbitrary commands. The issue is due to ImpExModule.php not properly sanitizing user input supplied to the 'systempath' variable. This may allow an attacker to include a file from a remote host that contains arbitrary commands which will be executed by the vulnerable script.
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.