index.php in ActiveCampaign SupportTrio 1.4 and earlier allows remote attackers to read or include arbitrary files via the page parameter, possibly due to a directory traversal vulnerability.
http://www.vupen.com/english/advisories/2005/2588
http://secunia.com/advisories/17731
http://pridels0.blogspot.com/2005/11/activecampaign-supporttrio-local-file.html