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Not in CISA KEV
HIGH severity

GHSA-2q66-6cc3-6xm8

HIGHFix: bolt/bolt#7853

GHSA-2q66-6cc3-6xm8 is a high-severity (CVSS 8.6) Cross-Site Request Forgery (CSRF) vulnerability in bolt/bolt. 2 public exploit references exist, so weaponization risk is real. O3 Security confirms whether GHSA-2q66-6cc3-6xm8 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

CSRF issue on preview pages in Bolt CMS

Also known asCVE-2020-4040
Published
Jun 9, 2020
Updated
Mar 14, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
2 known
Exploitation data as of Mar 14, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐘bolt/bolt

Real-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

Impact

Bolt CMS lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection, unauthorized users could generate a preview.

Patches

This has been fixed in Bolt 3.7.1

References

Related issue: https://github.com/bolt/bolt/pull/7853

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistbolt/boltall versions3.7.1
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for bolt/bolt. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update bolt/bolt to 3.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-2q66-6cc3-6xm8 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-2q66-6cc3-6xm8 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-2q66-6cc3-6xm8. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact Bolt CMS lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection, unauthorized users could generate a preview. ### Patches This has been fixed in Bolt 3.7.1 ### References Related issue: https://github.com/bolt/bolt/pull/7853
O3 Security · Impact-Aware SCA

Is GHSA-2q66-6cc3-6xm8 in your dependencies?

O3 detects GHSA-2q66-6cc3-6xm8 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.