Component Type: Third party extension. This extension is not part of the TYPO3 default installation.
Affected Versions: Version 1.1.1 and below
Vulnerability Type: Cross Site Scripting
Severity: Medium
Problem Description: Failing to filter user input the extension is susceptible to Cross Site Scripting (XSS), making it possible to execute arbitrary JavaScript.
Solution: An updated version 1.1.2 is available from the TYPO3 extension manager and at typo3.org/extensions/repository/view/rlmp_eventdb/1.1.2/.
Users of the extension are advised to update the extension as soon as possible.
General advice: Follow the recommendations that are given in the TYPO3 SECURITY Guide. Please subscribe to the typo3-announce mailing list to receive future Security Bulletins via E-mail.
Credits: Credits go to Dietrich Heise, who discovered the issue. Furthermore the TYPO3 Security Team wishes to thank the author Robert Lemke for fixing the issue.