Server Setups

Nginx

With the "default" php install on nginx, it'll only grab files ending in .php and pass them to your FastCGI Server. tinyissue and some php-based CMSes append paths to the php file for what I (not being a php developer) assume are good reasons. You'll need to beef up your php config like so:

location ~ ^(.+\.php)(.*)$ {
  fastcgi_pass   127.0.0.1:9000;
  fastcgi_index  index.php;
  set $document_root2 $document_root;
  if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") { set $document_root2 $1$2; }
  if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") {	set $document_root2 $1$2; }
  if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") {	set $document_root2 $1$2; }
  if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") {	set $document_root2 $1$2; }
  if ($document_root2 ~ "^(.*\\\\).*?[\\\\|\/]\.\.\/(.*)$") {	set $document_root2 $1$2; }
  fastcgi_split_path_info ^(.+\.php)(.*)$;
  fastcgi_param	SCRIPT_FILENAME	$document_root2$fastcgi_script_name;
  fastcgi_param	PATH_INFO	$fastcgi_path_info;
  fastcgi_param	PATH_TRANSLATED	$document_root2$fastcgi_path_info;
  include	fastcgi_params;
  fastcgi_param  DOCUMENT_ROOT      $document_root2;
}

Thanks to the Arch wiki Nginx page