Release Date: September 25, 2013
Bulletin update: September 18, 2014 (added CVE)
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: Version 3.1.1 and below
Vulnerability Type: Information Disclosure
Problem Description: Failing to check authentication codes properly, direct_mail exposes user data including the original authentication code.
Solution: An updated version 3.1.2 is available from the TYPO3 extension manager and at http://typo3.org/extensions/repository/download/direct_mail/3.1.2/t3x/. Users of the extension are advised to update the extension as soon as possible.
Credits: Credits go to Bernhard Kraft who discovered and reported this issue.