Several vulnerabilities have been found in the following third-party TYPO3 extension: th_mailformplus
Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
Affected Versions: Version 4.0.15 and below
Vulnerability Types: Cross-Site Scripting
Suggested CVSS v2.0: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C (What's that?)
Release Date: 07.09.2011
Problem Description: Failing to properly sanitize user input, th_mailformplus is susceptible to Cross Site Scripting.
Solution: An updated version 4.0.16 is available from the TYPO3 extension manager and attypo3.org/extensions/repository/view/th_mailformplus/4.0.16/.
Additional information from the extension author: th_mailformplus is no longer maintained and will be removed from TER in October. The author recommends to switch to the follow-up extension "formhandler".
Credits: Thanks to Martin Ficzel who discovered and reported this issue.
General advice: Follow the recommendations that are given in the TYPO3 Security Cookbook. Please subscribe to thetypo3-announce mailing list to receive future Security Bulletins via E-mail.