Creating a page/comment etc with the following wiki-markup macro will render javascript on the page for anybody visiting this page

{search:query=<script>alert(document.cookie)</script>}

IMPORTANT: please confirm receipt of this notification! Depending on the response, we may report the
vulnerability to publicly available security forums such as CERT (www.cert.org). Our policy is to give
you at least 30 days grace period prior to any public disclosure.