What is CVE-2022-25301?

CVE-2022-25301 is a high-severity vulnerability in Jsgui-Lang-Essentials Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.7/10. Published 2022-05-01.

How severe is CVE-2022-25301?

High severity. CVSS v3 base score is 7.7 out of 10.

Prototype Pollution in Jsgui-Lang-Essentials Project

CVE-2022-25301

All versions of package jsgui-lang-essentials are vulnerable to Prototype Pollution due to allowing all Object attributes to be altered, including their magical attributes such as proto, constructor and prototype.

Vulnerability class: Prototype Pollution

Published 2022-05-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (68.0th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000

Affected products

Jsgui-Lang-Essentials Project
Jsgui-Lang-Essentials — versions 0

Weakness classification (CWE)

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

References

snyk.io/vuln/SNYK-JS-JSGUILANGESSENTIALS-2316897 (Exploit, Third Party Advisory)
github.com/metabench/jsgui-lang-essentials/issues/1 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-25301?: CVE-2022-25301 is a high-severity vulnerability in Jsgui-Lang-Essentials Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.7/10. Published 2022-05-01.
How severe is CVE-2022-25301?: High severity. CVSS v3 base score is 7.7 out of 10.