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MrSwitch hello.js vulnerable to prototype pollution

Critical severity GitHub Reviewed Published Aug 11, 2023 to the GitHub Advisory Database • Updated Nov 9, 2023

Package

npm hellojs (npm)

Affected versions

< 1.18.8

Patched versions

1.18.8

Description

A prototype pollution vulnerability in MrSwitch hello.js prior to version 1.18.8 allows remote attackers to execute arbitrary code via hello.utils.extend function.

References

Published by the National Vulnerability Database Aug 11, 2023
Published to the GitHub Advisory Database Aug 11, 2023
Reviewed Aug 11, 2023
Last updated Nov 9, 2023

Severity

Critical
9.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CVE ID

CVE-2021-26505

GHSA ID

GHSA-g3vf-47fv-8f3c

Source code

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