如果我理解正确，您希望在上载时将所有附件状态设置为“发布”，而不是“继承”，以防止在父帖子状态更改时更改该状态。让我们看看wp_insert_post 如果它提供了任何可能性。

首先在第3483行（当前版本），如果是附件帖子，帖子状态设置为“继承”：

if ( \'attachment\' === $post_type && ! in_array( $post_status, array( \'inherit\', \'private\', \'trash\', \'auto-draft\' ), true ) ) {
    $post_status = \'inherit\';

$data = compact( \'post_author\', \'post_date\', \'post_date_gmt\', \'post_content\', \'post_content_filtered\', \'post_title\', \'post_excerpt\', \'post_status\', \'post_type\', \'comment_status\', \'ping_status\', \'post_password\', \'post_name\', \'to_ping\', \'pinged\', \'post_modified\', \'post_modified_gmt\', \'post_parent\', \'menu_order\', \'post_mime_type\', \'guid\' );

$data = apply_filters( \'wp_insert_attachment_data\', $data, $postarr );

add_filter (\'wp_insert_attachment_data\',\'wpse448037_force_attachment_publish\', 10, 2)
function wpse448037_force_attachment_publish ($data, $postarr) {
  $data[\'post_status\'] = \'publish\';
  return $data;
  }