CVE-2020-19316 is a high-severity (CVSS 8.8) OS Command Injection vulnerability in laravel/framework. 1 public exploit reference exists, so weaponization risk is real. A fix is available for laravel/framework — see the affected versions and patch details below.
OS Command Injection in Laravel Framework
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2020-19316 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
laravel/frameworkReal-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
OS Command injection vulnerability in function link in Filesystem.php in Laravel Framework before 5.8.17.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | laravel/framework | all versions | 5.8.17composer require laravel/framework:^5.8.17 |
Affected Products
frameworklaravelResearch 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 dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for laravel/framework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update laravel/framework to 5.8.17 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-19316 is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is CVE-2020-19316 in your dependencies?
Find it across Packagist, including transitive dependencies.