CVE-2013-0333: Rubyonrails Rails

High severity, CVSS 7.5. EPSS: 95.6% chance of exploitation in the next 30 days.

lib/active_support/json/backends/yaml.rb in Ruby on Rails 2.3.x before 2.3.16 and 3.0.x before 3.0.20 does not properly convert JSON data to YAML data for processing by a YAML parser, which allows remote attackers to execute arbitrary code, conduct SQL injection attacks, or bypass authentication via crafted data that triggers unsafe decoding, a different vulnerability than CVE-2013-0156.

Affected products

• Rubyonrails Rails: version 2.3.0 only; version 2.3.1 only; version 2.3.2 only; version 2.3.3 only; version 2.3.4 only; version 2.3.9 only; …
• Rubyonrails Ruby On Rails: version 3.0.4 only

Published 2013-01-30. Last modified 2026-06-16.