Cross-site scripting (XSS) vulnerability in view_filters_page.php in Mantis 1.0.0rc3 and earlier allows remote attackers to inject arbitrary web script or HTML via the target_field parameter.
http://www.vupen.com/english/advisories/2005/2874
http://www.debian.org/security/2005/dsa-944
http://secunia.com/advisories/18481
http://secunia.com/advisories/18018
http://pridels0.blogspot.com/2005/12/mantis-bugtracking-system-xss-vuln.html