Multiple directory traversal vulnerabilities in PHP iCalendar 2.0.1, 2.1, and 2.2 allow remote attackers to include arbitrary files via the (1) getdate and possibly other parameters used in the replace_files function in search.php and (2) $file variable as used in the parse function in functions/template.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24591
http://www.vupen.com/english/advisories/2006/0493
http://www.securityfocus.com/bid/16557
http://www.securityfocus.com/archive/1/424424/100/0/threaded
http://securityreason.com/securityalert/420