Component Type: TYPO3 CMS
Release Date: December 15, 2015
Vulnerable subcomponent: Backend
Vulnerability Type: Cross-Site Scripting
Affected Versions: Versions 6.2.0 to 6.2.15, 7.0.0 to 7.6.0
Severity: Low
Suggested CVSS v2.0: AV:N/AC:M/Au:S/C:N/I:P/A:N/E:F/RL:O/RC:C
CVE: not assigned yet
Problem Description: Failing to properly encode user input, several backend components are susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML or JavaScript.
Solution: Update to TYPO3 versions 6.2.16 or 7.6.1 that fix the problem described.
Credits: Thanks to Markus Bucher, Corné Hannema, Heine Pedersen and Torben Jensen who discovered and reported the issues.
General Advice: Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.
General Note: All security related code changes are tagged so that you can easily look them up on our review system.