Cross-site scripting (XSS) vulnerability in the Privatemsg module 7.x-1.x before 7.x-1.3 for Drupal allows remote attackers to inject arbitrary web script or HTML via a user name in a private message.
http://www.securityfocus.com/bid/54110
http://www.openwall.com/lists/oss-security/2012/10/04/3