automatic login to wordpress dashboard from another site

Question

I want to log in automatically to WP admin/dashboard from another site without going thru the login process.. I\'ve tried the following but with no luck:

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Answer 1

If you have access to the files of the website where you trying to login. You could add a auto login php script and $_POST the username and password to this script, example:

if ($_POST) {

    $errors = array();

    $username = esc_sql($_REQUEST['username']);
    $password = esc_sql($_REQUEST['password']);
    $remember = esc_sql($_REQUEST['rememberme']);
    $remember = ($remember) ? "true" : "false";

    $login_data = array();
    $login_data['user_login'] = $username;
    $login_data['user_password'] = $password;
    $login_data['remember'] = $remember;
    $user_verify = wp_signon($login_data, true);

    if (is_wp_error($user_verify)) {
        $errors[] = 'Invalid username or password. Please try again!';
    } else {
        wp_set_auth_cookie($user_verify->ID);
        wp_redirect(admin_url());
        exit;
    }

}

Wordpress codex references:

• Login function: http://codex.wordpress.org/Function_Reference/wp_signon
• Set cookie for admin login http://codex.wordpress.org/Function_Reference/wp_set_auth_cookie
• Get the admin page url: http://codex.wordpress.org/Function_Reference/admin_url

Hope it helps.

Edit: $wpdb->escape is deprecated since Wordpress version 3.6, use wpdb::prepare() or esc_sql() instead! I've changed the code to use esc_sql().

• esc_sql(): http://codex.wordpress.org/Function_Reference/esc_sql