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Security Advisories: GSA_kwCzR0hTQS1nM3ZmLTQ3ZnYtOGYzY84AA1QP

MrSwitch hello.js vulnerable to prototype pollution

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.

Permalink: https://github.com/advisories/GHSA-g3vf-47fv-8f3c
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1nM3ZmLTQ3ZnYtOGYzY84AA1QP
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 1 year ago
Updated: about 1 year ago


CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Percentage: 0.00335
EPSS Percentile: 0.7153

Identifiers: GHSA-g3vf-47fv-8f3c, CVE-2021-26505
References: Repository: https://github.com/MrSwitch/hello.js
Blast Radius: 24.5

Affected Packages

npm:hellojs
Dependent packages: 28
Dependent repositories: 315
Downloads: 24,463 last month
Affected Version Ranges: < 1.18.8
Fixed in: 1.18.8
All affected versions: 0.1.5, 0.1.6, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.5, 1.0.0, 1.1.3, 1.3.2, 1.3.7, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.5.0, 1.5.1, 1.6.0, 1.7.0, 1.7.3, 1.7.4, 1.7.5, 1.8.2, 1.8.3, 1.8.4, 1.9.3, 1.9.4, 1.9.5, 1.9.6, 1.9.7, 1.9.8, 1.9.9, 1.10.0, 1.10.1, 1.11.0, 1.11.1, 1.11.2, 1.12.0, 1.13.1, 1.13.2, 1.13.3, 1.13.4, 1.13.5, 1.13.6, 1.14.0, 1.14.1, 1.15.0, 1.15.1, 1.16.0, 1.16.1, 1.17.1, 1.18.0, 1.18.1, 1.18.3, 1.18.4, 1.18.6
All unaffected versions: 1.18.8, 1.19.0, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.19.5, 1.20.0