What is CVE-2020-7608?

CVE-2020-7608 is a medium-severity vulnerability in Yargs Yargs-Parser, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 5.3/10. Published 2020-03-16.

How severe is CVE-2020-7608?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2020-7608 known to be exploited?

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

Prototype Pollution in Yargs Yargs-Parser

CVE-2020-7608

yargs-parser could be tricked into adding or modifying properties of Object.prototype using a "__proto__" payload.

Vulnerability class: Prototype Pollution

EPSS: 0.005 (40.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Yargs Yargs-parser
N/a Yargs-parser — versions All versions prior to version 18.1.1 and patches at 13.1.2 and 15.0.1

Weakness classification (CWE)

CWE-1321 — Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution)

Public proof-of-concept exploits

References

report@snyk.io (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-7608?: CVE-2020-7608 is a medium-severity vulnerability in Yargs Yargs-Parser, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 5.3/10. Published 2020-03-16.
How severe is CVE-2020-7608?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2020-7608 known to be exploited?: 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.