common/admin/changepassword.php

<?php
require_once dirname(__FILE__).'/inc/auth.inc.php';

if (isset($_POST['password']) && ('' != $_POST['password'])){
    $out = '<?php $login="admin"; $password="'.md5($_POST['password']).'"; ?>';
    file_put_contents(dirname(__FILE__).'/inc/pwd.inc.php', $out);
    die("Password changed. <a href='administration.php'>Login</a>");
} else {
    die('Can not change password');
}
1	<?php
2	require_once dirname(__FILE__).'/inc/auth.inc.php';
3
4	if (isset($_POST['password']) && ('' != $_POST['password'])){
5	$out = '<?php $login="admin"; $password="'.md5($_POST['password']).'"; ?>';
6	file_put_contents(dirname(__FILE__).'/inc/pwd.inc.php', $out);
7	die("Password changed. <a href='administration.php'>Login</a>");
8	} else {
9	die('Can not change password');
10	}