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.
History

Wed, 01 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Johnbillion
Johnbillion query Monitor – The Developer Tools Panel For Wordpress
Wordpress
Wordpress wordpress
Vendors & Products Johnbillion
Johnbillion query Monitor – The Developer Tools Panel For Wordpress
Wordpress
Wordpress wordpress

Tue, 31 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 31 Mar 2026 11:45:00 +0000

Type Values Removed Values Added
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.
Title Query Monitor <= 3.20.3 - Reflected Cross-Site Scripting via Request URI
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-03-31T11:29:49.029Z

Updated: 2026-03-31T13:44:01.538Z

Reserved: 2026-03-16T13:30:15.794Z

Link: CVE-2026-4267

cve-icon Vulnrichment

Updated: 2026-03-31T13:43:53.035Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-31T12:16:31.360

Modified: 2026-04-01T14:24:02.583

Link: CVE-2026-4267

cve-icon Redhat

No data.