The ke_questionnaire extension 2.5.2 and earlier for TYPO3 uses predictable names for the questionnaire answer forms, which makes it easier for remote attackers to obtain sensitive information via a direct request.
https://www.redteam-pentesting.de/advisories/rt-sa-2014-009
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-8704
http://www.securityfocus.com/archive/1/534126/100/0/threaded