Release Date: November 14, 2016
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 0.3.2 and below
Vulnerability Type: Cross Site-Scripting
Problem Description: The extension fails to properly sanitize user input and is vulnerable to Cross Site-Scripting.
Solution: An updated version 0.3.3 is available from the TYPO3 Extension Manager and at https://typo3.org/extensions/repository/download/rs_securedownload/0.3.3/t3x/. Users of the extension are advised to update the extension as soon as possible.
Credits: Credits go to Torben Hansen who discovered and reported the vulnerability.