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TYPO3-SA-2009-004: Information Disclosure in third party extension "Frontend User registration"

It has been discovered that the TYPO3 extension "Frontend User Registration" (sr_feuser_register) is susceptible to Information Disclosure.

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

Severity: High

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 Münch, who discovered the issue and Steffen Gebert who reported it to us.

General advice: Follow the recommendations that are given in the TYPO3 SECURITY Guide. Please subscribe to the typo3-announce mailing list in order to receive future Security Bulletins via E-mail.