What is CVE-2026-16597?

CVE-2026-16597 is a high-severity vulnerability in Duracelltomi Gtm4wp – A Google Tag Manager (Gtm) Plugin For WordPress, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-07-29.

How severe is CVE-2026-16597?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Duracelltomi Gtm4wp – A Google Tag Manager (Gtm) Plugin For WordPress

CVE-2026-16597

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (15.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Duracelltomi Gtm4wp – A Google Tag Manager (Gtm) Plugin For Wordpress — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-16597?: CVE-2026-16597 is a high-severity vulnerability in Duracelltomi Gtm4wp – A Google Tag Manager (Gtm) Plugin For WordPress, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-07-29.
How severe is CVE-2026-16597?: High severity. CVSS v3 base score is 7.2 out of 10.