It was reported that when developers generate html options tags manually, user input concatenated with manually built tags may not be escaped and an attacker can inject arbitrary HTML in to the document. Only manually generated select tag options are impacted. Vulnerable code: <%= select('post', 'author_id', "<option value='#{user.id}'>#{user.name}</option>") %> Patches can be found here: https://groups.google.com/forum/#!msg/rubyonrails-security/CdoMUVpsRmQ/iFRwR1xPym8J
Statement: This issue affects the versions of rubygem-rails as shipped with Red Hat Subscription Asset Manager 1.2. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.