Multiple cross-site scripting (XSS) vulnerabilities in Drupal 5.x before 5.2, and 4.7.x before 4.7.7, (1) allow remote attackers to inject arbitrary web script or HTML via "some server variables," including PHP_SELF; and (2) allow remote authenticated administrators to inject arbitrary web script or HTML via custom content type names.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35638
https://exchange.xforce.ibmcloud.com/vulnerabilities/35637
http://www.vupen.com/english/advisories/2007/2697
http://www.securityfocus.com/bid/25097