TYPO3 CMS - Open Redirect in Core Utilities
CVE-2026-47347

5.3MEDIUM

Key Information:

Vendor

Typo3

Status
Typo3 Cms
Vendor
CVE Published:
9 June 2026

What is CVE-2026-47347?

Applications that use GeneralUtility::sanitizeLocalUrl to allow only local URLs are vulnerable to open redirect attacks if the URL is used after it has passed the aforementioned sanitization checks. This enables attackers to redirect users to external content and carry out phishing attacks. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.

Affected Version(s)

TYPO3 CMS 0 < 10.4.57

TYPO3 CMS 11.0.0 < 11.5.51

TYPO3 CMS 12.0.0 < 12.4.46

References

https://typo3.org/security/advisory/typo3-core-sa-2026-009
vendor-advisory
https://github.com/TYPO3/typo3/commit/3ffc0835012c6199db0...
patch
https://github.com/TYPO3/typo3/commit/22c2dd5398ebc4cb7aa...
patch

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alexandre Romao
Benjamin Franzke
.