It has been discovered that the extension "powermail" (powermail) is susceptible to Captcha Bypass
April 10, 2014
September 18, 2014 (added CVE)
Third party extension. This extension is not a part of the TYPO3 default installation.
powermail: Version 2.0.0 - 2.0.10
Suggested CVSS v2.0: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:F/RL:O/RC:C
The extension powermail offers the use of a captch validation to secure forms. It was possible to bypass the captcha validation and submit forms.
validators weren't involved so any other validation worked as expected.
Updated version 2.0.11 is available from the TYPO3 extension manager and at http://typo3.org/extensions/repository/download/powermail/2.0.11/t3x/
. Users of the extension are advised to update the extension as soon as possible as long as they use captchas in their forms.
Credits go to Jigal van Hemert who discovered and reported this issue.
Follow the recommendations that are given in the TYPO3 Security Guide
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