drupal-cck: cross-site scripting

From the Drupal advisory:

The Node reference and User reference sub-modules, which are part of the Content Construction Kit (CCK) project, lets administrators define node fields that are references to other nodes or to users. When displaying a node edit form, the titles of candidate referenced nodes or names of candidate referenced users are not properly filtered, allowing malicious users to inject arbitrary code on those pages. Such a cross site scripting (XSS) attack may lead to a malicious user gaining full administrative access.