Multiple cross-site scripting (XSS) vulnerabilities in mobiquo/smartbanner/welcome.php in the Tapatalk (com.tapatalk.wbb4) plugin 1.x before 1.1.2 for Woltlab Burning Board 4.0 allow remote attackers to inject arbitrary web script or HTML via the (1) app_android_id or (2) app_kindle_url parameter.