CVE-2011-4962
code/sitefeatures/PageCommentInterface.php in SilverStripe 2.4.x before 2.4.6 might allow remote attackers to execute arbitrary code via a crafted cookie in a user comment submission, which is not properly handled when it is deserialized.
Date published : 2012-09-17
http://doc.silverstripe.org/framework/en/trunk/changelogs/2.4.6
https://github.com/silverstripe/silverstripe-cms/commit/d15e850