Cross-site scripting (XSS) vulnerability in the process function in SSViewer.php in SilverStripe before 2.3.13 and 2.4.x before 2.4.6 allows remote attackers to inject arbitrary web script or HTML via the QUERY_STRING to template placeholders, as demonstrated by a request to (1) admin/reports/, (2) admin/comments/, (3) admin/, (4) admin/show/, (5) admin/assets/, and (6) admin/security/.
https://github.com/silverstripe/sapphire/commit/bdd6391
https://github.com/silverstripe/sapphire/commit/52a895f
https://github.com/silverstripe/sapphire/commit/16c3235
https://euvd.enisa.europa.eu/vulnerability/EUVD-2011-4865
http://www.securityfocus.com/archive/1/520050/100/0/threaded
http://www.rul3z.de/advisories/SSCHADV2011-024.txt
http://secunia.com/advisories/46390
http://doc.silverstripe.org/sapphire/en/trunk/changelogs/2.4.6
http://doc.silverstripe.org/sapphire/en/trunk/changelogs/2.3.12