suEXEC is a mechanism used by some web servers, including Apache and LiteSpeed, to make running CGI scripts more secure. suEXEC allows CGI scripts to run under the user account of the file's owner, rather than the common web server user account that is normally used. This reduces the risk of unauthorized code execution on the server, since each user can only access their own files. suEXEC can also help ensure that different users can run securely on a common web server with different permissions.
