Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: Version 2.6.1 and below
Vulnerability Type: Information disclosure
Release Date: February 23, 2012
Problem Description: In the edit perspective, the password of frontend users is delivered in plaintext. The autologin feature uses a GET redirect which includes username and password.
Solution: An updated version 2.6.2 is available from the TYPO3 extension manager and attypo3.org/extensions/repository/view/sr_feuser_register/2.6.2/. Users of the extension are advised to update the extension.
Credits: Credits go to Christian Boltz and Security Team Member Franz G. Jahn who discovered and reported this issue.