CVE-2008-3760
Cross-site request forgery (CSRF) vulnerability in the sign-out page in Vanilla 1.1.4 and earlier allows remote attackers to hijack the authentication of arbitrary users for requests that trigger a logout via a SignOutNow action to people.php.
Date published : 2008-08-21
http://lussumo.com/bugs/discussion/88/csrf-attack-hole/
http://lussumo.com/community/discussion/8463/possible-security-flaw/#Comment_88511