The WordPress installer is leaving the site wide open to hackers.
If DOES NOT update the salt keys in wp-config.php and just leaves the default
define( 'AUTH_KEY',         'put your unique phrase here' );
define( 'SECURE_AUTH_KEY',  'put your unique phrase here' );
define( 'LOGGED_IN_KEY',    'put your unique phrase here' );
define( 'NONCE_KEY',        'put your unique phrase here' );
define( 'AUTH_SALT',        'put your unique phrase here' );
define( 'SECURE_AUTH_SALT', 'put your unique phrase here' );
define( 'LOGGED_IN_SALT',   'put your unique phrase here' );
define( 'NONCE_SALT',       'put your unique phrase here' );
without updating them. 
These should be automatically be replaced by salt generated from https://api.wordpress.org/secret-key/1.1/salt/An early action by the DEV team would help a lot of WordPress users who use CWP and  might have missed this serious BUG