Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: Version 1.1.0 and below
Vulnerability Types: SQL Injection, Cross-Site Scripting
Release Date: 07.09.2011
Problem Description: Failing to properly sanitize user input, direct_mail_subscription is susceptible to SQL Injection.
Failing to encode user data for the HTML output, direct_mail_subscription is susceptible to Cross Site Scripting.
Solution: An updated version 1.1.1 is available from the TYPO3 extension manager and attypo3.org/extensions/repository/view/direct_mail_subscription/1.1.1/.
Credits: Thanks to Ivan Kartolo who discovered and reported this issue.