CVE-2022-25301: Jsgui-Lang-Essentials Project Jsgui-Lang-Essentials

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

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.

Affected products

Published 2022-05-01. Last modified 2026-06-17.