activeWeb contentserver CMS before 5.6.2964 does not limit the file-creation ability of editors who have restricted accounts, which allows these editors to create files in arbitrary directories.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35400
http://www.securityfocus.com/bid/24900
http://www.securityfocus.com/archive/1/473629/100/0/threaded
http://www.redteam-pentesting.de/advisories/rt-sa-2007-007.php
http://securityreason.com/securityalert/2899