GHSA-3g6c-88pf-m46f is a high-severity (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in bolt/bolt. 4 public exploit references exist, so weaponization risk is real. A fix is available for bolt/bolt — see the affected versions and patch details below.
Bolt Cross Site Request Forgery (CSRF)
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
GHSA-3g6c-88pf-m46f 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 377,166 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
bolt/boltReal-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
Cross Site Request Forgery (CSRF) in the bolt/upload File Upload feature in Bolt CMS 3.6.6 allows remote attackers to execute arbitrary code by uploading a JavaScript file to include executable extensions in the file/edit/config/config.yml configuration file.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | bolt/bolt | ≥ 3.6.6&&< 3.6.7 | 3.6.7composer require bolt/bolt:^3.6.7 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Bolt CMS 3.6.6 - Cross-Site Request Forgery / Remote Code Execution
by FelipeGaspar · Apr 8, 2019
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for bolt/bolt, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update bolt/bolt to 3.6.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-3g6c-88pf-m46f 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-3g6c-88pf-m46f can be triaged on real exposure rather than presence alone.
Tailored to GHSA-3g6c-88pf-m46f. 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-3g6c-88pf-m46f in your dependencies?
O3 Security finds GHSA-3g6c-88pf-m46f across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.