GHSA-9hp3-f5g8-rccg
CRITICALGHSA-9hp3-f5g8-rccg is a critical-severity (CVSS 9.8) Code Injection vulnerability in solspace/craft-freeform. O3 Security confirms whether GHSA-9hp3-f5g8-rccg is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
The Freeform CraftCMS plugin contains an Server-side template injection (SSTI) vulnerability
Blast Radius
solspace/craft-freeformReal-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
Freeform 5.0.0 to before 5.10.16, a plugin for CraftCMS, contains an Server-side template injection (SSTI) vulnerability, resulting in arbitrary code injection for all users that have access to editing a form (submission title).
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | solspace/craft-freeform | ≥ 5.0.0&&< 5.10.16 | 5.10.16 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for solspace/craft-freeform. 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.
Fix
Update solspace/craft-freeform to 5.10.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9hp3-f5g8-rccg 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 pinpoints whether GHSA-9hp3-f5g8-rccg 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-9hp3-f5g8-rccg. 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-9hp3-f5g8-rccg in your dependencies?
O3 detects GHSA-9hp3-f5g8-rccg across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.