ASA-2019-00022 – TYPO3: Cross-site Scripting (XSS) in Fluid ViewHelpers


Allele Security Alert

ASA-2019-00022

Identifier(s)

ASA-2019-00022, TYPO3-CORE-SA-2019-005

Title

Cross-site Scripting (XSS) in Fluid ViewHelpers

Vendor(s)

TYPO3

Product(s)

TYPO3 CMS

Affected version(s)

TYPO3 CMS versions 8.0.0 up to 8.7.22
TYPO3 CMS versions 9.0.0 up to 9.5.3

Fixed version(s)

TYPO3 CMS version 8.7.23
TYPO3 CMS version 9.5.4

Proof of concept

Unknown

Description

Failing to properly encode user input, templates using built-in Fluid ViewHelpers are vulnerable to Cross-Site Scripting (XSS).

Technical details

Unknown

Credits

Markus Gerdes and Andreas Wolf (TYPO3 core team)

Reference(s)

TYPO3-CORE-SA-2019-005: Cross-Site Scripting in Fluid ViewHelpers
https://typo3.org/security/advisory/typo3-core-sa-2019-005/

TYPO3 9.5.4 and 8.7.23 security releases published
https://typo3.org/article/typo3-954-and-8723-security-releases-published/

[TYPO3-announce] Announcing TYPO3 v9.5.4 and v8.7.23 security releases
http://lists.typo3.org/pipermail/typo3-announce/2019/000437.html

If there is any error in this alert or you wish a comprehensive analysis, let us know.

Last modified: May 10, 2019

We are not responsible for any data loss, device corruption or any other type of issue due to the use of any information mentioned in our security alerts.