rails_admin ruby gem <v1.1.1 is vulnerable to cross-site request forgery (CSRF) attacks. Non-GET methods were not validating CSRF tokens and, as a result, an attacker could hypothetically gain access to the application administrative endpoints exposed by the gem.
https://github.com/sferik/rails_admin/commit/b13e879eb93b661204e9fb5e55f7afa4f397537a