SSH into WHM server
ssh root@cpanel.host.com
Modify Website php-fpm Config File
Edit the following config file. Replace “website.com” with the website your enabling the shell_exec for
vi /opt/cpanel/ea-php72/root/etc/php-fpm.d/website.com.conf
Locate the following line and remove shell_exec from the list of disabled_functions
php_admin_value[disable_functions] = exec,passthru,shell_exec,system
The line should look like the following
php_admin_value[disable_functions] = exec,passthru,system
Restart Apache PHP FPM Service
Save the file and restart the apache_php_fpm service
/scripts/restartsrv_apache_php_fpm