Component Type: TYPO3 CMS
Release Date: February 16, 2016
Vulnerable subcomponent: legacy form component
Vulnerability Type: Cross-Site Scripting
Affected Versions: Versions 6.2.0 to 6.2.17
Suggested CVSS v2.0: AV:N/AC:M/Au:S/C:P/I:P/A:N/E:F/RL:O/RC:C
CVE: not assigned yet
Problem Description: Failing to sanitize content from editors, the legacy form component is susceptible to Cross-Site Scripting. A valid editor account with access to a form content element is required to exploit this vulnerability.
Solution: Update to TYPO3 version 6.2.18 that fixes the problem described.
Credits: Thanks to Georg Ringer 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.