CVE-2021-41143
HIGHCVE-2021-41143 is a high-severity (CVSS 7.2) CWE-77 vulnerability in openmage/magento-lts. O3 Security confirms whether CVE-2021-41143 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Fix for arbitrary file deletion in customer media allows for remote code execution
Blast Radius
openmage/magento-lts🐘openmage/magento-ltsReal-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
OpenMage LTS is an e-commerce platform. Prior to versions 19.4.22 and 20.0.19, Magento admin users with access to the customer media could execute code on the server. Versions 19.4.22 and 20.0.19 contain a patch for this issue.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | openmage/magento-lts | all versions | 19.4.22 |
| 🐘Packagist | openmage/magento-lts | ≥ 20.0.0&&< 20.0.19 | 20.0.19 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for openmage/magento-lts. 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 openmage/magento-lts to 19.4.22 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-41143 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 CVE-2021-41143 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-2021-41143. 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-2021-41143 in your dependencies?
O3 detects CVE-2021-41143 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.