GTM4WP <= 1.22.3 - Unauthenticated Stored Cross-Site Scripting via WooCommerce Billing Fields
| CVE | CVE-2026-16597 |
|---|---|
| CVSS | 7.2 (High) |
| Publicly Published | July 28, 2026 |
| Last Updated | September 10, 2026 |
| Researcher |
lhking
|
Description
The GTM4WP – A Google Tag Manager (GTM) plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via WooCommerce Billing Fields in all versions up to, and including, 1.22.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the GTM4WP WooCommerce order data integration option (GTM4WP_OPTION_INTEGRATE_WCORDERDATA) to be enabled, and is exploited by placing a guest checkout order with a JavaScript payload in a WooCommerce billing field such as the billing first name.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for GTM4WP – A Google Tag Manager (GTM) plugin for WordPress
| Software Type | Plugin |
|---|---|
| Software Slug | duracelltomi-google-tag-manager (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.22.4, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in GTM4WP – A Google Tag Manager (GTM) plugin for WordPress
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