CVE-2015-2047
The rsaauth extension in TYPO3 4.3.0 through 4.3.14, 4.4.0 through 4.4.15, 4.5.0 through 4.5.39, and 4.6.0 through 4.6.18, when configured for the frontend, allows remote attackers to bypass authentication via a password that is casted to an empty value.
Date published : 2015-02-23
http://www.securityfocus.com/bid/72763
http://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-001/