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CVE-2020-7640 — pixl-class

CRITICALFix: jhuckaby/pixl-class@47677a3

CVE-2020-7640 is a critical-severity (CVSS 9.8) OS Command Injection vulnerability in pixl-class. A fix is available for pixl-class — see the affected versions and patch details below.

OS Command Injection in pixl-class

Also known asGHSA-vm5j-vqr6-v7v8SNYK-JS-PIXLCLASS-564968
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs82th percentile — riskier than 82% of all scored CVEsHighest risk
0.15%0.98%1.81%2.64%0.6%2.1%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2020-7640 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

14other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
pixl-classnpm
2Kdownloads / week

Description

pixl-class prior to 1.0.3 allows execution of arbitrary commands. The members argument of the create function can be controlled by users without any sanitization.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmpixl-classall versions1.0.3npm install pixl-class@1.0.3

Affected Products

1 product · 1 configurations
Application
pixl-classpixlcore
< 1.0.3
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pixl-class, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update pixl-class to 1.0.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-7640 is resolved across your whole dependency graph.

  3. 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

pixl-class prior to 1.0.3 allows execution of arbitrary commands. The members argument of the create function can be controlled by users without any sanitization.
O3 Security · Impact-Aware SCA

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CVE-2020-7640: pixl-class — Fixed in 1.0.3