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TYPO3-SA-2010-021: TYPO3 Security Bulletin

It has been discovered that the extension powermail (powermail) is vulnerable to Cross-Site Scripting.

Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.

Affected Versions: Version 1.5.4 and below

Vulnerability Type: Cross-Site Scripting

Severity: Low

Suggested CVSS v2.0: AV:N/AC:L/Au:N/C:P/I:N/A:N/E:F/RL:OF/RC:C (What's that?)

Release Date: 26.10.2010

Problem Description: Because of improper input validation and output encoding, powermail is susceptible to reflective Cross-Site Scripting. Exploitation requires an authenticated TYPO3 editor to follow a crafted malicious link.

Solution: An updated version 1.5.5 is available from the TYPO3 extension manager and at typo3.org/extensions/repository/view/powermail/1.5.5/. 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 Jeremy Lebourdais who discovered and reported the issues.