CVE-2026-4267

HIGH7.2

Query Monitor <= 3.20.3 - Reflected Cross-Site Scripting via Request URI

Published Mar 31, 2026

Modified 1 weeks ago

Details

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.

References

WEB

https://plugins.trac.wordpress.org/browser/query-monitor/tags/3.20.2/output/html/request.php#L60

WEB

https://plugins.trac.wordpress.org/browser/query-monitor/tags/3.20.2/output/html/request.php#L70

WEB

https://plugins.trac.wordpress.org/changeset/3486705/query-monitor

WEB

https://research.cleantalk.org/cve-2026-4267/

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-4267

WEB