CVE-2021-26505

—

CVSS 3.1

9.8 critical

EPSS

1%p65

Published

Aug 11, 2023 (Aug 11, 2023)

Modified

Jun 17, 2026

Description

Prototype pollution vulnerability in MrSwitch hello.js version 1.18.6, allows remote attackers to execute arbitrary code via hello.utils.extend function.

Vendors: hello.js project
Products: hello.js
Weakness: CWE-1321
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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