What is CVE-2020-7730?

CVE-2020-7730 is a critical-severity vulnerability in Bestzip Project, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-09-04.

How severe is CVE-2020-7730?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-7730 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Bestzip Project

CVE-2020-7730

The package bestzip before 2.1.7 are vulnerable to Command Injection via the options param.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-09-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.031 (87.5th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000

Affected products

Bestzip Project
Bestzip — versions unspecified

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

snyk.io/vuln/SNYK-JS-BESTZIP-609371 (Patch, Third Party Advisory)
github.com/nfriedly/node-bestzip/commit/45d4a901478c6a8f396c8b959dd6cf8fd3f955b6 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-7730?: CVE-2020-7730 is a critical-severity vulnerability in Bestzip Project, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-09-04.
How severe is CVE-2020-7730?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-7730 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.