The host is installed with Ruby on Rails before 2.3.13 or 3.0.x before 3.0.10 or 3.1.x before 3.1.0.rc5 and is prone to cross-site scripting (XSS) vulnerability. A flaw is present in the application which fails to properly handle strip_tags helper. Successful exploitation allows remote attackers to inject arbitrary web script or HTML into the response.