CVE-2022-23520

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails
applications. Prior to version 1.4.4, there is a possible XSS vulnerability
with certain configurations of Rails::Html::Sanitizer due to an incomplete
fix of CVE-2022-32209. 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 issue is patched in
version 1.4.4. All users overriding the allowed tags to include both
“select” and “style” should either upgrade or use this workaround: Remove
either “select” or “style” from the overridden allowed tags. NOTE: Code is
not impacted if allowed tags are overridden using either the :tags option
to the Action View helper method sanitize or the :tags option to the
instance method SafeListSanitizer#sanitize.