Professional Content Management

Free and open source, TYPO3 CMS is the most widely used enterprise-level CMS.

Test TYPO3 now:

TYPO3 live demo

Inspire people to share

Offer your skills and contribute to the project. The community is growing and does more than just coding. 

A Community Effort

TYPO3 CMS is an Open Source project managed by the TYPO3 Association.

The Project

Do you have a question?

Ask the community or a professional partner.

TYPO3-CORE-SA-2025-002: Potential Open Redirect via Parsing Differences

Categories: Development, TYPO3 CMS Created by Oliver Hader
It has been discovered that TYPO3 CMS is susceptible to open redirect.
  • Component Type: TYPO3 CMS
  • Subcomponent: HTTP URI Component (ext:core)
  • Release Date: January 14, 2025
  • Vulnerability Type: Open Redirect
  • Affected Versions: 9.0.0-9.5.48, 10.0.0-10.4.47, 11.0.0-11.5.41, 12.0.0-12.4.24, 13.0.0-13.4.2
  • Severity: Medium
  • Suggested CVSS: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  • References: CVE-2024-55892, CWE-601

Problem Description

Applications that use TYPO3\CMS\Core\Http\Uri to parse externally provided URLs (e.g., via a query parameter) and validate the host of the parsed URL may be vulnerable to open redirect or SSRF attacks if the URL is used after passing the validation checks.

Solution

Update to TYPO3 versions 9.5.49 ELTS, 10.4.48 ELTS, 11.5.42 ELTS, 12.4.25 LTS, 13.4.3 LTS that fix the problem described.

Credits

Thanks to Sam Mush who reported this issue and to TYPO3 core & security team member Benjamin Franzke who fixed 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 you can easily look them up in our review system.