What is CVE-2022-25352?

CVE-2022-25352 is a high-severity vulnerability in Libnested Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.5/10. Published 2022-03-17.

How severe is CVE-2022-25352?

High severity. CVSS v3 base score is 7.5 out of 10.

Prototype Pollution in Libnested Project

CVE-2022-25352

The package libnested before 1.5.2 are vulnerable to Prototype Pollution via the set function in index.js. **Note:** This vulnerability derives from an incomplete fix for [CVE-2020-28283](https://security.snyk.io/vuln/SNYK-JS-LIBNESTED-1054930)

Vulnerability class: Prototype Pollution

Published 2022-03-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.021 (80.7th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Libnested Project
Libnested — versions unspecified

Weakness classification (CWE)

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

References

snyk.io/vuln/SNYK-JS-LIBNESTED-2342117 (Exploit, Patch, Third Party Advisory)
github.com/dominictarr/libnested/blob/master/index.js#L22 (Broken Link)
github.com/dominictarr/libnested/commit/c1129865d75fbe52b5a4f755ad3110ca5420f2e1 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-25352?: CVE-2022-25352 is a high-severity vulnerability in Libnested Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.5/10. Published 2022-03-17.
How severe is CVE-2022-25352?: High severity. CVSS v3 base score is 7.5 out of 10.