Multiple cross-site scripting (XSS) vulnerabilities in Ideal BB.NET 1.3 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) forumID, (2) boardID, and (3) topicRepeater1-p parameters in topics.aspx, (4) boardID parameter in categoryindex.aspx, (5) postID parameter in posts.aspx, (6) catID parameter in forums.aspx, and (7) memberID parameter in member.aspx.