ILIAS 4.4.1 allows remote attackers to execute arbitrary PHP code via an e-mail attachment that leads to creation of a .php file with a certain client_id pathname.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-2129
http://packetstormsecurity.com/files/125350/ILIAS-4.4.1-Cross-Site-Scripting-Shell-Upload.html