PT-2026-122111

CVE-2026-55826

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Published

2026-10-23

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Updated

2026-10-23

Description by

CVSS 4.0
8.7
High
MetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The GTM Server Side plugin by stape.io implements server-side tracking on WordPress websites. From version 2.0.0 to before version 2.1.48, the WooCommerce purchase event tracking mechanism allows an unauthenticated attacker to trigger the rendering of another customer's full order data — including personally identifiable information (PII) — into the page's JavaScript dataLayer. This issue has been patched in version 2.1.48.
Exploitability
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Related identifiers
CVE-2026-55826
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