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CRITICAL severity

GHSA-8cjg-f53m-8m9q

CRITICAL

GHSA-8cjg-f53m-8m9q is a critical-severity (CVSS 9.1) OS Command Injection vulnerability in magento/project-community-edition. O3 Security confirms whether GHSA-8cjg-f53m-8m9q is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Magento XML Injection vulnerability in the Widgets Update Layout

Also known asBIT-magento-2021-36023CVE-2021-36023
Published
Sep 6, 2023
Updated
Nov 6, 2025
Affected
5 pkgs
Patched
2 / 5
Exploits
None indexed
Exploitation data as of Aug 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-8cjg-f53m-8m9q.

EPSS Exploitation Probability

via FIRST.org ↗
2.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs82th percentile — riskier than 82% of all scored CVEsHighest risk
0.00%6.83%13.7%20.5%9.7%2.3%Feb 26Jun 26Aug 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-8cjg-f53m-8m9q plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 356,453 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

5 pkgs affected
🐘magento/project-community-edition🐘magento/community-edition🐘magento/community-edition🐘magento/community-edition🐘magento/community-edition

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

Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an XML Injection vulnerability in the Widgets Update Layout. An attacker with admin privileges can trigger a specially crafted script to achieve remote code execution.

Affected Packages

5 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmagento/project-community-editionall versionsNo fix
🐘Packagistmagento/community-editionall versions2.3.7-p1
🐘Packagistmagento/community-editionall versionsNo fix
🐘Packagistmagento/community-edition2.4.2-p1&&< 2.4.2-p22.4.2-p2
🐘Packagistmagento/community-editionall versionsNo fix

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for magento/project-community-edition. 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

    No patched version of magento/project-community-edition has shipped for GHSA-8cjg-f53m-8m9q yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  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-8cjg-f53m-8m9q 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-8cjg-f53m-8m9q. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an XML Injection vulnerability in the Widgets Update Layout. An attacker with admin privileges can trigger a specially crafted script to achieve remote code execution.
O3 Security · Impact-Aware SCA

Is GHSA-8cjg-f53m-8m9q in your dependencies?

O3 detects GHSA-8cjg-f53m-8m9q across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.