shell bypass 403
<?php
/**
* Title: Search
* Slug: extendable/hidden-search
* Inserter: no
*/
?>
<!-- wp:search {"label":"<?php echo esc_attr_x( 'Search', 'search form label', 'extendable' ); ?>","showLabel":false,"buttonText":"<?php echo esc_attr_x( 'Search', 'search button text', 'extendable' ); ?>","buttonUseIcon":true} /-->