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TYPO3-EXT-SA-2021-001: SQL Injection in extension "VHS: Fluid ViewHelpers" (vhs)

Categories: Development, Security Created by Torben Hansen
It has been discovered that the extension "VHS: Fluid ViewHelpers" (vhs) is susceptible to SQL Injection.
  • Release Date: March 16, 2021
  • Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
  • Component: "VHS: Fluid ViewHelpers" (vhs)
  • Vulnerability Type: SQL Injection
  • Affected Versions: 5.1.0 and below
  • Severity: Medium
  • Suggested CVSS: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C
  • References: CVE-2021-28381

Problem Description

It has been discovered that the extension is susceptible to blind SQL Injection when user input is passed to the isLanguageViewHelper.

Solution

An updated version 5.1.1  is available from the TYPO3 extension manager, Packagist and at
https://extensions.typo3.org/extension/download/vhs/5.1.1/zip/.
Users of the extension are advised to update the extension as soon as possible.

Please note, that version 5.x is no longer maintained by the extension author. If possible, please update to at least version 6.x.

Credits

Thanks to TYPO3 Security Team Member Oliver Hader for reporting the issue.

General Advice

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