CVE-2024-55892: Potential Open Redirect via Parsing Differences in TYPO3

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-01-14 · updated 2026-06-17
Weakness: CWE-601

Description

TYPO3 is a free and open source Content Management Framework. 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. Users are advised to update to TYPO3 versions 9.5.49 ELTS, 10.4.48 ELTS, 11.5.42 LTS, 12.4.25 LTS, 13.4.3 which fix the problem described. There are no known workarounds for this vulnerability.

Affected products

typo3: from 9.0.0 before 9.5.49; from 10.0.0 before 10.4.48; from 11.0.0 before 11.5.42; from 12.0.0 before 12.4.25; from 13.0.0 before 13.4.3 — fixed in 10.4.48, 11.5.42, 12.4.25, 13.4.3, 9.5.49

How to fix

Upgrade to a fixed version: typo3 10.4.48, 11.5.42, 12.4.25, 13.4.3. Check the vendor advisory for mitigations.

References

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