CVE-2022-29602: Cross-Site Scripting in extension "Grid Elements" (gridelements)

Tue. 26th April, 2022

It has been discovered that the extension “Grid Elements” (gridelements) is susceptible to Cross-Site Scripting.

• Release Date: April 26, 2022
• Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
• Component: “Grid Elements” (gridelements)
• Vulnerability Type: Cross-Site Scripting
• Affected Versions: 7.6.1 and below, 8.0.0 - 8.7.0, 9.0.0 - 9.7.0 and 10.0.0 - 10.2.0
• Severity: Medium
• Suggested CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C
• References: CVE-2022-29602

Problem Description

The extension fails to properly encode user input for output in HTML context. A TYPO3 backend user account is required to exploit the vulnerability.

Solution

Updated versions 7.7.0, 8.8.0, 9.8.0 and 10.3.0 are available from the TYPO3 extension manager, packagist and at
https://extensions.typo3.org/extension/download/gridelements/10.3.0/zip
https://extensions.typo3.org/extension/download/gridelements/9.8.0/zip
https://extensions.typo3.org/extension/download/gridelements/8.8.0/zip
https://extensions.typo3.org/extension/download/gridelements/7.7.0/zip
Users of the extension are advised to update the extension as soon as possible.

Credits

Thanks to TYPO3 Security Team member Oliver Hader for reporting the vulnerability and to Jo Hasenau for providing updated versions of the extension.

General Advice

Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.