It has been discovered that the extension "wt_directory" (wt_directory) is susceptible to SQL Injection
Release Date: June 15, 2015
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 1.4.1 and below
Vulnerability Type: SQL Injection
CVE: not assigned yet
Problem Description: Failing to properly sanitize user-supplied input, the extension is vulnerable to SQL-Injection.
Solution: An updated version 1.4.2 is available from the TYPO3 Extension Manager and at <http://typo3.org/extensions/repository/download/wt_directory/1.4.2/t3x/>. Users of the extension are advised to update the extension as soon as possible. Please note: The extension author is no longer maintaining this extension. Therefore it is marked as obsolete and should not longer be used.
Credits: Credits go to Marc Bastian Heinrichs who discovered and reported the issue.