CVE-2020-22643
HIGHCVE-2020-22643 is a high-severity (CVSS 7.2) Unrestricted File Upload vulnerability in feehi/cms. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether CVE-2020-22643 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Feehi CMS arbitrary file upload vulnerability
Blast Radius
feehi/cmsReal-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
Feehi CMS 2.1.0 is affected by an arbitrary file upload vulnerability, potentially resulting in remote code execution. After an administrator logs in, open the administrator image upload page to potentially upload malicious files.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | feehi/cms | all versions | No fix |
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 dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for feehi/cms. 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.
Remediation status
No patched version of feehi/cms has shipped for CVE-2020-22643 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
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 CVE-2020-22643 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 CVE-2020-22643. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2020-22643 in your dependencies?
O3 detects CVE-2020-22643 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.