CVE-2024-55892 — typo3/cms-core
MEDIUMCVE-2024-55892 is a medium-severity (CVSS 4.8) Open Redirect vulnerability in typo3/cms-core. A fix is available for typo3/cms-core — see the affected versions and patch details below.
Potential Open Redirect via Parsing Differences in TYPO3
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-55892.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2024-55892 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,333 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
typo3/cms-core🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-core🐘typo3/cms-coreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
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 Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | typo3/cms-core | ≥ 9.0.0&&< 9.5.49 | 9.5.49composer require typo3/cms-core:^9.5.49 |
| 🐘Packagist | typo3/cms-core | ≥ 10.0.0&&< 10.4.48 | 10.4.48composer require typo3/cms-core:^10.4.48 |
| 🐘Packagist | typo3/cms-core | ≥ 11.0.0&&< 11.5.42 | 11.5.42composer require typo3/cms-core:^11.5.42 |
| 🐘Packagist | typo3/cms-core | ≥ 12.0.0&&< 12.4.25 | 12.4.25composer require typo3/cms-core:^12.4.25 |
| 🐘Packagist | typo3/cms-core | ≥ 13.0.0&&< 13.4.3 | 13.4.3composer require typo3/cms-core:^13.4.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for typo3/cms-core, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update typo3/cms-core to 9.5.49 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-55892 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2024-55892 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2024-55892. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2024-55892 in your dependencies?
O3 Security finds CVE-2024-55892 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.