Ticket #38420: 38420.diff

src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php

@@ -1906 +1906 @@
                         'default'           => 'publish',
                         'description'       => __( 'Limit result set to posts assigned a specific status; can be comma-delimited list of status types.' ),
                         'enum'              => array_merge( array_keys( get_post_stati() ), array( 'any' ) ),
-                        'sanitize_callback' => 'sanitize_key',
-                        'type'              => 'string',
+                        'sanitize_callback' => 'wp_parse_slug_list',
+                        'type'              => 'array',
                         'validate_callback' => array( $this, 'validate_user_can_query_private_statuses' ),
                 );
                 $params['filter'] = array(
@@ -1946 +1946 @@
          * @return WP_Error|boolean
          */
         public function validate_user_can_query_private_statuses( $value, $request, $parameter ) {
-                if ( 'publish' === $value ) {
+                if ( 'publish' === $value || is_array( $value ) && count( 1 === $value ) && in_array( 'publish', $value, true ) ) {
                         return true;
                 }
                 $post_type_obj = get_post_type_object( $this->post_type );