Changeset 51414 for trunk/src/wp-includes/class-wp-customize-widgets.php

Timestamp:

07/13/2021 05:57:04 AM (3 years ago)

Author:

peterwilsoncc

Message:

Widgets: Validate HTML before saving block widgets.

Props talldanwp, noisysocks, kevin940726, peterwilsoncc.

File:

• trunk/src/wp-includes/class-wp-customize-widgets.php (modified) (1 diff)

trunk/src/wp-includes/class-wp-customize-widgets.php

@@ -1420 +1420 @@
             $widget_object = $wp_widget_factory->get_widget_object( $id_base );
             if ( ! empty( $widget_object->widget_options['show_instance_in_rest'] ) ) {
+                if ( 'block' === $id_base && ! current_user_can( 'unfiltered_html' ) ) {
+                    // The content of the 'block' widget is not filtered on the
+                    // fly while editing. Filter the content here to prevent
+                    // vulnerabilities.
+                    $value['raw_instance']['content'] = wp_kses_post( $value['raw_instance']['content'] );
+                }
+
                 return $value['raw_instance'];
             }