PLUGIN SECURITY
Is Query Monitor safe?
Query Monitor is the developer tools panel for WordPress and WooCommerce.
What this plugin does
- Slug:
query-monitor - Author: John Blackbourn
- 200000+ active installs
- 98/100 rating (469 reviews on wordpress.org)
- 21575995 all-time downloads
- On WordPress.org since 2013-11-19
debugdebug bardevelopmentperformancequery monitor
Maintenance status
- Latest known version: 4.0.7
- Last updated: 2026-06-20 8:17pm GMT
- Tested up to WordPress: 7.0.4
- Requires PHP: 7.4+
- Max supported PHP (analyzed): 8.4
Known vulnerabilities
1 known CVE on file for Query Monitor.
| CVE | Vulnerability | Type | Severity | Affected | Fixed in | Published | Status |
|---|---|---|---|---|---|---|---|
| — | Query Monitor [query-monitor] < 3.20.4 | — | Unknown | < 3.20.4 | 3.20.4 | 0000-00-00 | ✓ fixed in latest |
| CVE-2026-4267 | Query Monitor < 3.20.4 - Reflected Cross-Site Scripting via Request URI | — | Unknown | < 3.20.4 | 3.20.4 | — | ✓ fixed in latest |
How to fix it
Keep Query Monitor updated — 4.0.7 is the latest version on wordpress.org, and each CVE above lists the exact release that fixed it ("Fixed in").
This is the plugin's full known vulnerability history, not a scan of any specific installation — run a free scan of your own site to check your exact installed version.
Safer / more established alternatives
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Check your own WordPress site
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