Cross-site scripting (XSS) vulnerability in index.php for TOPo 2.2 (2.2.178) allows remote attackers to inject arbitrary web script or HTML via the (1) m, (2) s, (3) ID, or (4) t parameters, or the (5) field name, (6) Your Web field, or (7) email field in the comments section.
http://www.securityfocus.com/bid/13701
http://securitytracker.com/id?1014016
http://secunia.com/advisories/15325
http://lostmon.blogspot.com/2005/05/topo-22-multiple-variable-fields-xss.html