Add CVE-2022-32209 (#506)

Author: sudoremo

gems/rails-html-sanitizer/CVE-2022-32209.yml

@@ -0,0 +1,67 @@
+---
+gem: rails-html-sanitizer
+cve: 2022-32209
+url: https://groups.google.com/g/rubyonrails-security/c/ce9PhUANQ6s
+title: Possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer
+date: 2022-06-10
+description: |
+  There 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: ALL
+  Not affected: NONE
+  Fixed Versions: v1.4.3
+
+  ## Impact
+
+  A 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.rb
+  config.action_view.sanitized_allowed_tags = ["select", "style"]
+  ```
+
+  see https://guides.rubyonrails.org/configuring.html#configuring-action-view
+
+  Or it may be done with a `:tags` option to the Action View helper `sanitize`:
+
+  ```
+  <%= sanitize @comment.body, tags: ["select", "style"] %>
+  ```
+
+  see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize
+
+  Or it may be done with Rails::Html::SafeListSanitizer directly:
+
+  ```ruby
+  # class-level option
+  Rails::Html::SafeListSanitizer.allowed_tags = ["select", "style"]
+  ```
+
+  or
+
+  ```ruby
+  # instance-level option
+  Rails::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.
+
+  ## Releases
+
+  The FIXED releases are available at the normal locations.
+
+  ## Workarounds
+
+  Remove either `select` or `style` from the overridden allowed tags.
+
+  ## Credits
+
+  This vulnerability was responsibly reported by [windshock](https://hackerone.com/windshock?type=user).
+patched_versions:
+- '>= 1.4.3'