Cross-site scripting (XSS) vulnerability in activesupport/lib/active_support/core_ext/string/output_safety.rb in Ruby on Rails before 3.0.17, 3.1.x before 3.1.8, and 3.2.x before 3.2.8 might allow remote attackers to inject arbitrary web script or HTML via vectors involving a ' (quote) character.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-3464
• GHSA-h835-75hw-pj89
• https://groups.google.com/group/rubyonrails-security/msg/8f1bbe1cef8c6caf?dmode=source&output=gplain
• http://rhn.redhat.com/errata/RHSA-2013-0154.html
• http://secunia.com/advisories/50694
• http://weblog.rubyonrails.org/2012/8/9/ann-rails-3-2-8-has-been-released/
• rails/rails#7215
• rails/rails@28f2c6f
• rails/rails@780a718
• rails/rails@d0c9759
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2012-3464.yml