CVE-2020-7751: pathval before version 1.1.1 is vulnerable to prototype pollution.

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MEDIUM 6.0UPGRADE

CVE-2020-7751 is a medium-severity flaw (CVSS 6.0) affecting pathval. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

pathval before version 1.1.1 is vulnerable to prototype pollution.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.0 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-1321
Published	2020-10-26
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: chaijis

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-10-26 12:17 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

chaijis pathval UPGRADE

Affected: < 1.1.1

Fixed in: 1.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls pathval

2. UPGRADE to 1.1.1

npm install pathval@">=1.1.1"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7751?

pathval: upgrade to 1.1.1. Exact commands for each OS are on this page.

Is CVE-2020-7751 being exploited?

CVE-2020-7751 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7751 affect?

CVE-2020-7751 affects pathval. Severity is medium (CVSS 6.0). pathval before version 1.1.1 is vulnerable to prototype pollution.

How urgent is CVE-2020-7751?

Priority 45/100. Public exploit reference

References

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