Cross-site scripting (XSS) vulnerability in the XSS filter (framework/Text_Filter/Filter/xss.php) in Horde Application Framework 3.2.2 and 3.3, when Internet Explorer is being used, allows remote attackers to inject arbitrary web script or HTML via unknown vectors related to style attributes.
http://secunia.com/advisories/34609
http://secunia.com/advisories/34418
http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00004.html