GHSA-qmwf-j7g7-f5jw — typo3/cms
GHSA-qmwf-j7g7-f5jw is a security vulnerability in typo3/cms. A fix is available for typo3/cms — see the affected versions and patch details below.
Cross-Site Scripting in third party library mso/idna-convert
Real-World Exposure
typo3/cms🐘typo3/cmsReal-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
Make sure to not expose the vendor directory to the publicly accessible document root. In composer managed installation, make sure to configure a dedicated web folder. In general it is recommended to not expose the complete typo3_src sources folder in the document root.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | typo3/cms | ≥ 7.6.0&&< 7.6.10 | 7.6.10composer require typo3/cms:^7.6.10 |
| 🐘Packagist | typo3/cms | ≥ 8.0.0&&< 8.2.1 | 8.2.1composer require typo3/cms:^8.2.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for typo3/cms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update typo3/cms to 7.6.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qmwf-j7g7-f5jw 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 GHSA-qmwf-j7g7-f5jw can be triaged on real exposure rather than presence alone.
Tailored to GHSA-qmwf-j7g7-f5jw. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-qmwf-j7g7-f5jw in your dependencies?
O3 Security finds GHSA-qmwf-j7g7-f5jw across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.