Multiple cross-site scripting (XSS) vulnerabilities in Papoo Light 3.6 before 20070611 allow remote attackers to inject arbitrary web script or HTML via (1) the URI in a GET request or (2) the Title field of a visitor comment, and (3) allow remote authenticated users to inject arbitrary web script or HTML via a message to another user.  NOTE: vector (2) might overlap CVE-2006-3571.1.