Multiple cross-site scripting (XSS) vulnerabilities in Bitweaver 2.0.0 and earlier allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO to (1) users/register.php or (2) search/index.php, or an editcomments action in (3) wiki/index.php or (4) forums/index.php.  NOTE: the error parameter to users/login.php is covered by CVE-2006-3103.