Release Date: March 03, 2016
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: version 0.3.2 and below
Vulnerability Type: Cross-Site Scripting, Insecure Unserialize and Information Disclosure
Severity: High
Suggested CVSS v2.0: AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C (What's that?)
Problem Description: Failing to sanitize user input properly, festat is vulnerable to Cross-Site Scripting, Insecure Unserialize and Information Disclosure.
Solution: An updated version 0.3.3 is available from the TYPO3 Extension Manager and at https://typo3.org/extensions/repository/download/festat/0.3.3/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 this vulnerability.
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.