diff --git a/wp-includes/post.php b/wp-includes/post.php
index d9c2774adf..5cc7f66244 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -509,6 +509,18 @@ function create_initial_post_types() {
 			'show_in_rest'          => true,
 			'rewrite'               => false,
 			'map_meta_cap'          => true,
+			'capabilities'          => array(
+				'edit_others_posts'      => 'edit_theme_options',
+				'delete_posts'           => 'edit_theme_options',
+				'publish_posts'          => 'edit_theme_options',
+				'create_posts'           => 'edit_theme_options',
+				'read_private_posts'     => 'edit_theme_options',
+				'delete_private_posts'   => 'edit_theme_options',
+				'delete_published_posts' => 'edit_theme_options',
+				'delete_others_posts'    => 'edit_theme_options',
+				'edit_private_posts'     => 'edit_theme_options',
+				'edit_published_posts'   => 'edit_theme_options',
+			),
 			'rest_base'             => 'navigation',
 			'rest_controller_class' => 'WP_REST_Posts_Controller',
 			'supports'              => array(
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 38b3c1593b..e4468015c0 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-beta3-52399';
+$wp_version = '5.9-beta3-52400';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.