csv_builder.rb in ActiveAdmin (aka Active Admin) before 3.2.0 allows CSV injection.
https://github.com/activeadmin/activeadmin/releases/tag/v3.2.0
https://github.com/activeadmin/activeadmin/pull/8161
https://github.com/activeadmin/activeadmin/commit/697be2b183491beadc8f0b7d8b5bfb44f2387909