Multiple SQL injection vulnerabilities in the quote_table_name method in the ActiveRecord adapters in activerecord/lib/active_record/connection_adapters/ in Ruby on Rails before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allow remote attackers to execute arbitrary SQL commands via a crafted column name.

Cross-site scripting (XSS) vulnerability in the strip_tags helper in actionpack/lib/action_controller/vendor/html-scanner/html/node.rb in Ruby on Rails before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a tag with an invalid name.

The template selection functionality in actionpack/lib/action_view/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.10 and 3.1.x before 3.1.0.rc6 does not properly handle glob characters, which allows remote attackers to render arbitrary views via a crafted URL, related to a "filter skipping vulnerability."

The cross-site scripting (XSS) prevention feature in Ruby on Rails 2.x before 2.3.12, 3.0.x before 3.0.8, and 3.1.x before 3.1.0.rc2 does not properly handle mutation of safe buffers, which makes it easier for remote attackers to conduct XSS attacks via crafted strings to an application that uses a problematic string method, as demonstrated by the sub method.

Cross-site scripting (XSS) vulnerability in the strip_tags function in Ruby on Rails before 2.2.s, and 2.3.x before 2.3.5, allows remote attackers to inject arbitrary web script or HTML via vectors involving non-printing ASCII characters, related to HTML::Tokenizer and actionpack/lib/action_controller/vendor/html-scanner/html/node.rb.

The example code for the digest authentication functionality (http_authentication.rb) in Ruby on Rails before 2.3.3 defines an authenticate_or_request_with_http_digest block that returns nil instead of false when the user does not exist, which allows context-dependent attackers to bypass authentication for applications that are derived from this example by sending an invalid username without a password.

CRLF injection vulnerability in Ruby on Rails before 2.0.5 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted URL to the redirect_to function.

Multiple SQL injection vulnerabilities in Ruby on Rails before 2.1.1 allow remote attackers to execute arbitrary SQL commands via the (1) :limit and (2) :offset parameters, related to ActiveRecord, ActiveSupport, ActiveResource, ActionPack, and ActionMailer.

Session fixation vulnerability in Rails before 1.2.4, as used for Ruby on Rails, allows remote attackers to hijack web sessions via unspecified vectors related to "URL-based sessions."

Rails before 1.2.4, as used for Ruby on Rails, allows remote attackers and ActiveResource servers to determine the existence of arbitrary files and read arbitrary XML files via the Hash.from_xml (Hash#from_xml) method, which uses XmlSimple (XML::Simple) unsafely, as demonstrated by reading passwords from the Pidgin (Gaim) .purple/accounts.xml file.