Index: wp-pass.php
===================================================================
--- wp-pass.php	(revision 19222)
+++ wp-pass.php	(working copy)
@@ -10,7 +10,7 @@
 require( dirname(__FILE__) . '/wp-load.php');
 
 // 10 days
-setcookie('wp-postpass_' . COOKIEHASH, stripslashes( $_POST['post_password'] ), time() + 864000, COOKIEPATH);
+setcookie('wp-postpass_' . COOKIEHASH, stripslashes( $_POST['post_password'] ), time() + 864000, COOKIEPATH, COOKIE_DOMAIN);
 
 wp_safe_redirect(wp_get_referer());
 exit;