Multiple cross-site scripting (XSS) vulnerabilities submit.asp in ASPScriptz Guest Book 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) GBOOK_UNAME, (2) GBOOK_EMAIL, (3) GBOOK_CITY, (4) GBOOK_COU, (5) GBOOK_WWW, and (6) GBOOK_MESS form fields.