Multiple cross-site scripting (XSS) vulnerabilities in eGroupware before 1.0.0.007 allow remote attackers to inject arbitrary web script or HTML via the (1) ab_id, (2) page, (3) type, or (4) lang parameter to index.php or (5) category_id parameter.
http://www.gulftech.org/?node=research&article_id=00069-04202005
http://sourceforge.net/project/shownotes.php?release_id=320768
http://security.gentoo.org/glsa/glsa-200504-24.xml