Release Date: May 27, 2016
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 4.0.3 and below
Vulnerability Type: Path Traversal
Problem Description: The extension fails to properly sanitize user input and is vulnerable to Path Traversal. This vulernability is only exploitable as TYPO3 backend user having access to the media backend module.
Solution: Updated versions 3.7.5 and 4.0.4 are available from the TYPO3 Extension Manager and at https://typo3.org/extensions/repository/download/media/3.7.5/t3x/ and https://typo3.org/extensions/repository/download/media/4.0.4/t3x/. Users of the extension are advised to update the extension as soon as possible.
Credits: Credits go to Falk Huber who discovered and reported the vulnerability.