Ticket #17009: 17009.patch

wp-includes/user.php

@@ -1546 +1546 @@
         $ID = (int) $userdata['ID'];
 
         // First, get all of the original fields
-        $user = get_userdata($ID);
+        if ( $user = get_userdata($ID) ) {
+                // Escape data pulled from DB.
+                $user = add_magic_quotes(get_object_vars($user));
+        } else {
+                $user = array();
+        }
 
-        // Escape data pulled from DB.
-        $user = add_magic_quotes(get_object_vars($user));
-
         // If password is changing, hash it now.
         if ( ! empty($userdata['user_pass']) ) {
                 $plaintext_pass = $userdata['user_pass'];