SEPTEMBER 20, 2026
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Case File

CVE-2026-16597

HIGH · CVSS 7.2 EPSS 0.24% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-29 · Last synced 2026-08-28

CyberRota Analysis

AI-Generated

The GTM4WP plugin for WordPress is vulnerable to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in WooCommerce billing fields, affecting all versions up to 1.22.3. This vulnerability allows unauthenticated attackers to inject malicious scripts that execute when users access compromised pages, particularly if the WooCommerce order data integration option is enabled. WordPress site administrators using this plugin, especially those with WooCommerce enabled, should prioritize immediate patching to mitigate potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

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CVE
CVE-2026-16597
Severity
HIGH
CVSS
7.2
EPSS
0.24%
WordPress Java

Original NVD 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.