Several vulnerabilities have been discovered in Rails, the Ruby web application framework. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2009-4214 A cross-site scripting vulnerability had been found in the strip_tags function. An attacker may inject non-printable characters that certain browsers will then evaluate. This vulnerability only affects the oldstable distribution . CVE-2011-2930 A SQL injection vulnerability had been found in the quote_table_name method could allow malicious users to inject arbitrary SQL into a query. CVE-2011-2931 A cross-site scripting vulnerability had been found in the strip_tags helper. An parsing error can be exploited by an attacker, who can confuse the parser and may inject HTML tags into the output document. CVE-2011-3186 A newline injection vulnerability had been found in response.rb. This vulnerability allows an attacker to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the Content-Type header.