CVE-2026-55826: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in stape-io gtm-server-side-wordpress-plugin
Description
A vulnerability in the GTM Server Side plugin by stape.io for WordPress allows unauthenticated attackers to access another customer's full order data, including personally identifiable information (PII), via the WooCommerce purchase event tracking mechanism. This affects versions from 2.0.0 up to but not including 2.1.48. The issue has been fixed in version 2.1.48.
CVSS v4.0
Score 8.7high
Affected software
stape-io
gtm-server-side-wordpress-plugin
pkg:github/stape-io/gtm-server-side-wordpress-pluginRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The GTM Server Side plugin by stape.io implements server-side tracking on WordPress websites. Versions 2.0.0 through before 2.1.48 contain a vulnerability in the WooCommerce purchase event tracking mechanism that permits an unauthenticated attacker to cause the rendering of another customer's complete order data, including PII, into the page's JavaScript dataLayer. This exposure of sensitive information (CWE-200) can lead to unauthorized data disclosure. The vulnerability is addressed in version 2.1.48.
Potential Impact
An unauthenticated attacker can trigger the exposure of sensitive customer order information, including personally identifiable information, by exploiting the WooCommerce purchase event tracking in affected plugin versions. This results in unauthorized disclosure of sensitive data, potentially violating user privacy and data protection regulations.
Mitigation Recommendations
Upgrade the GTM Server Side plugin to version 2.1.48 or later, where this vulnerability has been patched. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-17T16:29:38.864Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6adb651b4d27ba8daa2e068f
Added to database: 10/23/2026, 13:46:03 UTC
Last enriched: 10/23/2026, 14:00:25 UTC
Last updated: 10/23/2026, 15:26:05 UTC
Views: 4
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