WD My Cloud EX4100 PHP, MySQL, phpMyAdmin, Joomla and Wordpress Manually update

Dear folks in the WD community.

I would like to know what exact steps I must do to update PHP, MySQL, phpMyAdmin, Joomla and Wordpress on my WD My Cloud EX4100 unit, and where do I get them to do it manually, since in the latest firmware, the only thing that the staff did development of WD My Cloud was to patch the security problems in the operational operation of it.

Thank you

Jorge