TYPO3-CORE-SA-2015-004: Cross-Site Scripting exploitable by Editors

July 01, 2015

Category: TYPO3 CMS
Author: Helmut Hummel
Keywords: TYPO3 CMS, Cross-Site Scripting

It has been discovered, that TYPO3 is susceptible to Cross-Site Scripting

Component Type: TYPO3 CMS

Release Date: July 1, 2015

 

Vulnerable subcomponent: Backend

Vulnerability Type: Cross-Site Scripting

Affected Versions: Versions 6.2.0 to 6.2.13, 7.0.0 to 7.3.0

Severity: Low

Suggested CVSS v2.0: AV:N/AC:M/Au:S/C:P/I:P/A:N/E:F/RL:OF/RC:C

CVE: not assigned yet

Problem Description: Failing to properly HTML encode input from editors (page titles in links and file names), TYPO3 is vulnerable to Cross-Site Scripting.

Solution: Update to TYPO3 versions 6.2.14 or 7.3.1 that fix the problem described.

Credits: Thanks to Marc Bastian Heinrichs who discovered and reported the issue.

 

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.