Release Date: November 14, 2016
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 3.3.6 and below
Vulnerability Type: Cross-Site Scripting
Problem Description: The extension fails to properly sanitize user input.
Solution: An updated version 3.3.7 is available from the TYPO3 Extension Manager and at https://typo3.org/extensions/repository/download/locator/3.3.7/t3x/. Users of the extension are advised to update the extension as soon as possible.
Credits: Credits go to Wolfgang Klinger who discovered and reported the vulnerability.