Cross-site scripting (XSS) vulnerability in the private archive script (private.py) in GNU Mailman 2.1.7 allows remote attackers to inject arbitrary web script or HTML via the action argument.
http://www.vupen.com/english/advisories/2006/1269
http://www.securityfocus.com/bid/17403
http://www.mail-archive.com/mailman-checkins%40python.org/msg06273.html
http://securitytracker.com/id?1015876
http://secunia.com/advisories/19558
http://mail.python.org/pipermail/mailman-announce/2006-April/000084.html