{"id":"UBUNTU-CVE-2022-32209","details":"# Possible XSS Vulnerability in Rails::Html::SanitizerThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.This vulnerability has been assigned the CVE identifier CVE-2022-32209.Versions Affected: ALLNot affected: NONEFixed Versions: v1.4.3## ImpactA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both `select` and `style` elements.Code is only impacted if allowed tags are being overridden. This may be done via application configuration:```ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = [\"select\", \"style\"]```see https://guides.rubyonrails.org/configuring.html#configuring-action-viewOr it may be done with a `:tags` option to the Action View helper `sanitize`:```\u003c%= sanitize @comment.body, tags: [\"select\", \"style\"] %\u003e```see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitizeOr it may be done with Rails::Html::SafeListSanitizer directly:```ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = [\"select\", \"style\"]```or```ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"select\", \"style\"])```All users overriding the allowed tags by any of the above mechanisms to include both \"select\" and \"style\" should either upgrade or use one of the workarounds immediately.## ReleasesThe FIXED releases are available at the normal locations.## WorkaroundsRemove either `select` or `style` from the overridden allowed tags.## CreditsThis vulnerability was responsibly reported by [windshock](https://hackerone.com/windshock?type=user).","modified":"2025-10-24T04:53:42Z","published":"2022-06-24T15:15:00Z","upstream":["CVE-2022-32209"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-32209"},{"type":"REPORT","url":"https://hackerone.com/reports/1530898"},{"type":"REPORT","url":"https://discuss.rubyonrails.org/t/cve-2022-32209-possible-xss-vulnerability-in-rails-sanitizer/80800"},{"type":"REPORT","url":"https://github.com/rails/rails-html-sanitizer/commit/45a5c10fed3d9aa141594c80afa06d748fa0967d"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-32209"}],"affected":[{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer@1.0.3-2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-1","1.0.3-1","1.0.3-2"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.0.3-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-32209.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer@1.0.4-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.3-2","1.0.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.0.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-32209.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer@1.3.0-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.4-1","1.3.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.3.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-32209.json"}},{"package":{"name":"ruby-rails-html-sanitizer","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ruby-rails-html-sanitizer@1.4.2-2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-2","1.4.2-1","1.4.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rails-html-sanitizer","binary_version":"1.4.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-32209.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}