GTM4WP <= 2.0.6 - Unauthenticated Sensitive Information Exposure via Cached WooCommerce Reliable Purchase Tracking Pages
- ID
- WPSEC-2026-2634
- Plugin
- GTM4WP – A Google Tag Manager (GTM) plugin for WordPress (duracelltomi-google-tag-manager)
- Affected
- from 2.0.0 before 2.1.0
- Remediation
- Update to 2.1.0 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness
- CWE-524
- Usage
- Plugin High · Affected versions High among sites WPSec scans, 2026-11-06
- Attack surface
- GTM4WP on WPSec AttackSurface
- Fix released
- Published
Description
The GTM4WP – A Google Tag Manager (GTM) plugin for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure via the WooCommerce Reliable Purchase Tracking feature in all versions from 2.0.0 up to, and including, 2.0.6, due to the plugin writing a shopper's pending purchase into the data layer of whatever page that shopper views next without marking the page as uncacheable. The data can include the purchase event, the raw order data with the buyer's name, addresses, email and phone, and the Enhanced Conversions user data. This makes it possible for unauthenticated attackers to view another shopper's order and customer details when a page cache stores and serves such a page. Exploitation requires Reliable Purchase Tracking to be enabled (it is off by default), the cache-safe data layer to be off, and a page cache that stores pages for visitors with a WooCommerce session.
References
- https://wpsec.com/vuln/WPSEC-2026-2634/
- https://plugins.svn.wordpress.org/duracelltomi-google-tag-manager/tags/2.1.0/
- https://wordpress.org/plugins/duracelltomi-google-tag-manager/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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