WordPress: Browser Aufruf von WP Dateien nur für angemeldete User erlauben

Apache

<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteBase /
  RewriteCond %{REQUEST_URI} ^/wp-content/uploads/testfolder/.*$
  RewriteRule ^(.*)$ - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
  RewriteCond %{HTTP_COOKIE} !^.*wordpress_logged_in_.*$ [NC]
  RewriteCond %{REQUEST_URI} !^/wp-admin [NC]
  RewriteCond %{REQUEST_URI} !^/wp-login\.php [NC]
  RewriteRule . - [R=403,L]
</IfModule>