PHP remote file inclusion vulnerability in extcalendar.php in Mohamed Moujami ExtCalendar 2.0 allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27633
http://www.vupen.com/english/advisories/2006/2711
http://www.securityfocus.com/bid/19042
http://www.securityfocus.com/archive/1/440870/100/0/threaded
http://www.securityfocus.com/archive/1/440451/100/0/threaded
http://www.securityfocus.com/archive/1/439451/100/0/threaded