MrSwitch hello.js vulnerable to prototype pollution

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.

Recommendation

Update the hellojs package to the latest compatible version. Followings are version details:

• Affected version(s): < 1.18.8
• Patched version(s): 1.18.8

References

• GHSA-g3vf-47fv-8f3c
• CVE-2021-26505
• CWE-1321
• CAPEC-310
• OWASP 2021-A6

Related Issues

• npm package rfc6902 vulnerable to Prototype Pollution - CVE-2021-4245
• dustjs-linkedin vulnerable to Prototype Pollution - CVE-2021-4264
• Baobab vulnerable to Prototype Pollution - CVE-2021-4307
• Immutable is vulnerable to Prototype Pollution - CVE-2026-29063

You might also like:

How to Secure your NodeJs Express Javascript Application - part 1

How to Secure your NodeJs Express Javascript Application - part 2

10 Secure Coding Best Practices to Follow in Every Project

Tags:

npm

hellojs