TYPO3-CORE-SA-2016-009: Cross-Site Scripting in TYPO3 Backend
April 12, 2016
It has been discovered, that TYPO3 is susceptible to Cross-Site Scripting.
Component Type: TYPO3 CMS
Release Date: April 12, 2016
Vulnerable subcomponent: Backend
Vulnerability Type: Cross-Site Scripting
Affected Versions: Versions 6.2.0 to 6.2.19, 7.6.0 to 7.6.4 and 8.0.0
Suggested CVSS v2.0: AV:N/AC:L/Au:S/C:P/I:P/A:N/E:P/RL:O/RC:C
CVE: not assigned yet
Problem Description: Failing to properly encode user input, some backend components are vulnerable to Cross-Site Scripting. A valid backend user account is needed to exploit this vulnerability.
Solution: Update to TYPO3 versions 6.2.20, 7.6.5 or 8.0.1 that fix the problem described.
Credits: Thanks to Georg Ringer, Nicole Cordes and Alexander Grein who discovered and reported the issues.
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