Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: Version 1.7.0 and all versions below
Vulnerability Type: Cross Site Scripting, SQL injection
Solution: An updated version 1.7.1 is available from the TYPO3 extension manager and at http://typo3.org/extensions/repository/view/wec_discussion/1.7.1/. Users of the extension are advised to update the extension as soon as possible.
Credits: Credits go to Peter Athmann and TYPO3 Security Team member Rove Monteux who discovered and reported the issues.