XWiki Permissions Privileges and Access Controls Vulnerability - CVE-2006-7223
PreviewAction in XWiki 0.9.543 through 0.9.1252 does not set the Author field to the identity of the user who last modified a document which allows remote authenticated users without programming rights to execute arbitrary code by selecting a document whose author has programming rights modifying this document to contain a script and previewing without saving the document.