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HIGH severity

CVE-2020-7681 — marscode

HIGH

CVE-2020-7681 is a high-severity (CVSS 7.5) Path Traversal vulnerability in marscode. 1 public exploit reference exists, so weaponization risk is real. No vendor fix is recorded yet; mitigation options are listed below.

Path Traversal in marscode

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 ↗
1.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs77th percentile — riskier than 77% of all scored CVEsHighest risk
0.00%0.75%1.49%2.24%0.5%1.7%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2020-7681 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 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.

0other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
marscodenpm
10downloads / week

Description

This affects all versionsup to and including version 1.0.1-0 of package marscode. There is no path sanitization in the path provided at fs.readFile in index.js.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
📦npmmarscodeall versionsNo fix

Affected Products

1 product · 1 configurations
Application
marscodeindo-mars
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.

This affects all versions of package marscode. There is no path sanitiza…

snyk.ioNVDJul 2020

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Remediation status

    No patched version of marscode has shipped for CVE-2020-7681 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

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

This affects all versionsup to and including version 1.0.1-0 of package marscode. There is no path sanitization in the path provided at `fs.readFile` in `index.js`.
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CVE-2020-7681: marscode: Path Traversal