In CiviCRM before 5.28.1 and CiviCRM ESR before 5.27.5 ESR, the CKEditor configuration form allows CSRF.
{ "binaries": [ { "binary_name": "civicrm-common", "binary_version": "4.7.1+dfsg-2ubuntu1" }, { "binary_name": "civicrm-l10n", "binary_version": "4.7.1+dfsg-2ubuntu1" }, { "binary_name": "drupal7-mod-civicrm", "binary_version": "4.7.1+dfsg-2ubuntu1" }, { "binary_name": "wordpress-civicrm", "binary_version": "4.7.1+dfsg-2ubuntu1" } ] }