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CVE-2026-4267 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/query-monitor/tags/3.20.2/output/html/request.php#L60	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/browser/query-monitor/tags/3.20.2/output/html/request.php#L70	[email protected]	Source CodeVendor
https://plugins.trac.wordpress.org/changeset/3486705/query-monitor	[email protected]	Source CodeVendor
https://research.cleantalk.org/cve-2026-4267/	[email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/0b75cad9-9f76-4839-8eb2-40d84662846d?source=cve	[email protected]	AdvisoryRemedy

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
Query Monitor	All versions
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jul 24, 2026	CVE Translated	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 8, 2026	CVE Modified	[email protected]
Mar 31, 2026	New CVE Received	[email protected]