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CVE-2026-4267

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CVE-2026-4267

Published: Mar 31, 2026

Modified: Apr 8, 2026

PUBLISHED

CVSS v3.1

7.2

HIGH

Description

The Query Monitor – The developer tools panel for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘$_SERVER['REQUEST_URI']’ parameter in all versions up to, and including, 3.20.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

VendorProductVersions

johnbillion

Query Monitor

affected
0 - <= 3.20.3

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

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CVE-2026-4267 | HIGH (7.2) - Security Vulnerability | QwikSec