CVE-2020-7751

FAUCET Score

CVE-2020-7751 describes a prototype pollution vulnerability in chaijs pathval versions prior to 1.1.1. This high-severity flaw, rated 7.2 CVSS, allows an authenticated attacker to remotely manipulate object prototypes, potentially leading to high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the vulnerability remains a concern for affected systems.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 1.1.1CPE matchmatch criteria	cpe:2.3:a:chaijis:pathval::::::node.js::*

CVSS Data

CVSS version used by this source: 3.1

6.0MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

Exploitability Score

1.2

Impact Score

4.7

CvssVersion

3.1

Exploit Intelligence

EPSS Score

1.52%

Probability of exploitation in next 30 days

EPSS Percentile

71.9%

Percentile rank of EPSS score among Peer Group

As of 2026-07-26

Model: v2026.06.15

This CVE's current EPSS score of 0.0152 is in the 66th percentile among its peer group of 5,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference

View patch

npmpatch availablevia ghsa

Product: pathvalFixed in: 1.1.1

Vendor Advisories (1)

npmGHSA-g6ww-v8xp-vmwghigh

Prototype pollution in pathval

Feb 10, 2022

References

github.com / chaijs/pathval/pull/58/files

PatchThird Party Advisory

snyk.io / vuln/SNYK-JS-PATHVAL-596926

ExploitPatchThird Party Advisory