What’s Vulnerable › Vulnerabilities

CVE-2022-25301: Prototype Pollution

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-01 · updated 2026-06-17
• Weakness: CWE-1321

Description

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

• jsgui-lang-essentials: all versions

References

• https://github.com/metabench/jsgui-lang-essentials/issues/1
• https://snyk.io/vuln/SNYK-JS-JSGUILANGESSENTIALS-2316897
• https://github.com/metabench/jsgui-lang-essentials/issues/1
• https://snyk.io/vuln/SNYK-JS-JSGUILANGESSENTIALS-2316897

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