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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-2xr4-chcf-vmvf The Query Monitor plugin for WordPress has Reflected Cross-Site Scripting via Request URI
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

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

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

Link: CVE-2026-4267

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-4267

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses