Cross-site scripting (XSS) vulnerability in lib/rack/ssl.rb in the rack-ssl gem before 1.4.0 for Ruby allows remote attackers to inject arbitrary web script or HTML via a URI, which might not be properly handled by third-party adapters such as JRuby-Rack.
https://github.com/josh/rack-ssl/commit/9d7d7300b907e496db68d89d07fbc2e0df0b487b
http://www.securityfocus.com/bid/66314
http://www.openwall.com/lists/oss-security/2014/03/19/20
http://secunia.com/advisories/57466
http://lists.opensuse.org/opensuse-updates/2014-04/msg00032.html