CVE-2024-42330 CRITICAL

CVE-2024-42330: JS - Internal strings in HTTP headers

Vendor Zabbix
Product Zabbix
Weakness CWE-134
Published November 27, 2024
Last update November 3, 2025

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This allows to create internal strings that can be used to access hidden properties of objects.

Key dates

02Disclosure timeline

November 27, 2024 CVE published
November 3, 2025 Record updated