Release Date: December 18, 2017
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 2.16.0 and below
Vulnerability Type: SQL Injection, Cross Site-Scripting
CVE: not assigned yet
Problem Description: The extension fails to properly sanitize user input and is susceptible to SQL Injection and Cross Site-Scripting.
Solution: Versions of this extension that are known to be vulnerable will no longer be available for download from the TYPO3 Extension Repository. The extension author is no longer maintaining this extension. Please uninstall and delete the extension from your installation.
Update: Thanks to sponsoring from CPS-IT GmbH, the security team was able to release a bug fix version of this extension. Please note that only known vulnerabilities were fixed and we did not do any security audit for the extension.
Credits: Credits go to Gábor Ács-Kurucz who discovered and reported the vulnerability.