Multiple cross-site scripting (XSS) vulnerabilities in Bitweaver 2.8.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the path info to (1) stats/index.php or (2) newsletters/edition.php or the (3) username parameter to users/remind_password.php, (4) days parameter to stats/index.php, (5) login parameter to users/register.php, or (6) highlight parameter.