Multiple cross-site scripting (XSS) vulnerabilities in Ultimate Auction 1.0 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) item parameter in (a) emailtofriend.pl or (b) violation.pl, (2) seller parameter in (c) vsoa.pl, (3) user parameter in (d) userask.pl or (e) leavefeed.pl, (4) itemnum parameter in userask.pl, (5) category parameter in (f) itemlist.pl, and the (6) query parameter in (g) search.pl.