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CRITICAL severity

CVE-2020-28429 — geojson2kml

CRITICAL

CVE-2020-28429 is a critical-severity (CVSS 9.8) OS Command Injection vulnerability in geojson2kml. 1 public exploit reference exists, so weaponization risk is real. No vendor fix is recorded yet; mitigation options are listed below.

Command Injection in geojson2kml

Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
1 known
Exploitation data as of Oct 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
63.3%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
56.9%68.3%79.8%91.2%84.2%63.3%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2020-28429 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the 50–90% 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.

1other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
geojson2kmlnpm
56downloads / week

Description

All versions up to and including version 0.1.1 of package geojson2kml are vulnerable to Command Injection via the index.js file.

PoC:

var a =require("geojson2kml"); 
a("./","& touch JHU",function(){})

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmgeojson2kmlall versionsNo fix

Affected Products

1 product · 1 configurations
Application
geojson2kmlgeojson2kml_project
all
Exploits & PoCs
1

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 dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for geojson2kml, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of geojson2kml has shipped for CVE-2020-28429 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    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.

How to detect CVE-2020-28429

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2020-28429 -u https://target
Template
geojson2kml - Command Injection
Severity
critical
Impact
Successful exploitation of this vulnerability could result in unauthorized access, remote code execution, privilege escalation
Remediation
Do not use geojson2kml. There is no fixed version for geojson2kml.

Template by ProjectDiscovery nuclei-templates (eeche, chae1xx1os, persona-twotwo), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

All versions up to and including version 0.1.1 of package geojson2kml are vulnerable to Command Injection via the index.js file. ### PoC: ```js var a =require("geojson2kml"); a("./","& touch JHU",function(){}) ```
O3 Security · Impact-Aware SCA

Is CVE-2020-28429 in your dependencies?

Find it across npm, including transitive dependencies.

CVE-2020-28429: geojson2kml: Command Injection