Release Date: April 6, 2009
Component Type: Third party extension. This extension is not a part of a TYPO3 default installation.
Affected Versions: 2.5.20 and all versions below
Vulnerability Type: Information Disclosure
Problem Description: Failing to properly check access rights, the extension is susceptible to information disclosure, making it possible for a logged in frontend user to get hold of information (including the password) of other frontend user records.
Solution: An updated version 2.5.21 is available from the TYPO3 extension manager and at http://typo3.org/extensions/repository/view/sr_feuser_register/2.5.21/. Users of the extension are advised to update the extension as soon as possible.
Credits: Credits go to Thomas Renner and Christian MÃ¼nch, who discovered the issue and Steffen Gebert who reported it to us.