EasyPHP Webserver Multiple Vulnerabilities

This host is running EasyPHP Webserver and is prone to multiple vulnerabilities.
Successful exploitation will allow attackers to gain administrative access, disclose the information, inject PHP code/shell and execute a remote PHP Code. Impact Level: Application
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.
The bug in EasyPHP WebServer Manager, its skipping authentication for certain requests. Which allows to bypass the authentication, disclose the information or execute a remote PHP code.
EasyPHP version 12.1 and prior