It has been discovered, that TYPO3 is susceptible to Cross-Site Scripting
Component Type: TYPO3 CMS
Release Date: December 15, 2015
Vulnerability Type: Cross-Site Scripting
Affected Versions: Versions 6.2.0 to 6.2.15, 7.0.0 to 7.6.0
Suggested CVSS v2.0: AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:O/RC:C
CVE: not assigned yet
Problem Description: Failing to properly HTML encode extension data during an extension installation, TYPO3 is vulnerable to Cross-Site Scripting.
Solution: Update to TYPO3 versions 6.2.16 or 7.6.1 that fix the problem described.
Credits: Thanks to the security team member Helmut Hummel who discovered and reported the issue.
General Note: All security related code changes are tagged so that you can easily look them up on our review system.