PHP IMAP Module Security Report

Did you guys see this: imap_open exploit Blog on the matter: portswigger.net/daily-swig/fresh-exploit-takes-the-shackles-off-disabled-php-functions How to test the exploit: github.com/Bo0oM/PHP_imap_open_exploit/blob/master/exploit.php I recently got myself a CRM system that didnt work on one host so I moved it to my cPanel server and everything worked perfectly there. I contacted the first hosting provider and they said there was a huge security exploit with imap_open function so they closed it up. That made me think about cPanel. Should I close it up on my cPanel host or have you guys taken any steps to prevent this exploit ?