Ticket #8212: unique-salt-r9678.patch

wp-includes/pluggable.php

@@ -1270 +1270 @@
                                 update_option('logged_in_salt', $salt);
                         }
                 }
+        } else {
+                // ensure each auth scheme has its own unique salt
+                $salt = hash_hmac('md5', $scheme, $secret_key);
         }
 
         return apply_filters('salt', $secret_key . $salt, $scheme);