CVE-2022-25301: All versions of package jsgui-lang-essentials are vulnerable to Prototype Pollution due to allowing all Object

This week

HIGH 7.7REMOTEMITIGATE

CVE-2022-25301 is a high-severity flaw (CVSS 7.7) affecting jsgui-lang-essentials. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-1321
Published	2022-05-01
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: jsgui-lang-essentials project

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

Am I affected?

Timeline

2022-05-01 17:15 UTCPublished CVE record published
2026-06-17 04:33 UTCUpdated Record last modified

jsgui-lang-essentials project jsgui-lang-essentials MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy jsgui-lang-essentials || rpm -q jsgui-lang-essentials || jsgui-lang-essentials --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2022-25301?

jsgui-lang-essentials: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-25301 being exploited?

CVE-2022-25301 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-2022-25301 affect?

CVE-2022-25301 affects jsgui-lang-essentials. Severity is high (CVSS 7.7). 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.

How urgent is CVE-2022-25301?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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