It has been discovered that the extension "Event management and registration" (sf_event_mgt) is susceptible to SQL Injection.
Release Date: April 10, 2017
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 1.8.0 and below
Vulnerability Type: SQL Injection
CVE: not assigned yet
Problem Description: The extension fails to properly sanitize user input and is susceptible to SQL Injection.
Solution: An updated version 1.8.1 is available from the TYPO3 Extension Manager and at <https://typo3.org/extensions/repository/download/sf_event_mgt/1.8.1/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.
Note: In case you extended the controller of the sf_event_mgt extension in your own extensions, be sure to apply the fix there too.