johnbillion Query Monitor vulnerabilities

Latest johnbillion Query Monitor CVEs

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1. CVE-2026-4267 Query Monitor <= 3.20.3 - Reflected Cross-Site Scripting via Request URI

   Published 2026-03-31

   High·CVSS 7.2 EPSS 0.31%

   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. Th...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.