wp-cron.php is a exploit in which a get request responds with 200 if successful, this has no protection and is usually connected to a database like mysql, spamming it with GET requests can take the website down, you can refer to hackerone website for more info on this exploit.
ADDED A NEW EXPLOIT WP-CRON.PHP
wp-cron.php is a exploit in which a get request responds with 200 if successful, this has no protection and is usually connected to a database like mysql, spamming it with GET requests can take the website down, you can refer to hackerone website for more info on this exploit.