diff --git a/core/modules/ckeditor/js/ckeditor.js b/core/modules/ckeditor/js/ckeditor.js
index f67ed62..048db55 100644
--- a/core/modules/ckeditor/js/ckeditor.js
+++ b/core/modules/ckeditor/js/ckeditor.js
@@ -237,7 +237,7 @@
         url: url,
         progress: {type: 'throbber'},
         submit: {
-          editor_object: existingValues
+          attributes: existingValues
         }
       });
       ckeditorAjaxDialog.execute();
diff --git a/core/modules/editor/src/Form/EditorImageDialog.php b/core/modules/editor/src/Form/EditorImageDialog.php
index 9c2feb5..921ef34 100644
--- a/core/modules/editor/src/Form/EditorImageDialog.php
+++ b/core/modules/editor/src/Form/EditorImageDialog.php
@@ -67,7 +67,7 @@ public function buildForm(array $form, FormStateInterface $form_state, FilterFor
     // provided by the editor plugin opening the dialog.
     if (!$image_element = $form_state->get('image_element')) {
       $user_input = $form_state->getUserInput();
-      $image_element = isset($user_input['editor_object']) ? $user_input['editor_object'] : [];
+      $image_element = isset($user_input['attributes']) ? $user_input['attributes'] : [];
       $form_state->set('image_element', $image_element);
     }
 
diff --git a/core/modules/editor/src/Form/EditorLinkDialog.php b/core/modules/editor/src/Form/EditorLinkDialog.php
index c576389..7a402b1 100644
--- a/core/modules/editor/src/Form/EditorLinkDialog.php
+++ b/core/modules/editor/src/Form/EditorLinkDialog.php
@@ -37,7 +37,7 @@ public function buildForm(array $form, FormStateInterface $form_state, FilterFor
     // The default values are set directly from \Drupal::request()->request,
     // provided by the editor plugin opening the dialog.
     $user_input = $form_state->getUserInput();
-    $input = isset($user_input['editor_object']) ? $user_input['editor_object'] : array();
+    $input = isset($user_input['attributes']) ? $user_input['attributes'] : array();
 
     $form['#tree'] = TRUE;
     $form['#attached']['library'][] = 'editor/drupal.editor.dialog';