Information disclosure in adodb/
not fully tested but IMO it possible to select any data from any table within TYPO3\CMS\Adodb\View\CheckConnectionWizardView, just a be login needs to be needed
Updated by Christian Kuhn about 10 years ago
ext:datasources must be installed, then some non-admin can "dump" the data of any row of this table via checkconnectionwiz.
it is not possible to dump an arbitrary table, and also this does not work if adodb or datasources is not installed.