GHSA-74gc-hf33-5353 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in forkcms/forkcms. A fix is available for forkcms/forkcms — see the affected versions and patch details below.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
forkcms/forkcmsReal-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
Fork before 5.8.3 allows XSS via navigation_title or title.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | forkcms/forkcms | all versions | 5.8.3composer require forkcms/forkcms:^5.8.3 |
Affected Products
fork cmsfork-cmsDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for forkcms/forkcms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update forkcms/forkcms to 5.8.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-74gc-hf33-5353 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
Frequently Asked Questions
Is GHSA-74gc-hf33-5353 in your dependencies?
Find it across Packagist, including transitive dependencies.