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CVE-2026-55826

8.7 high Deferred
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 5

  1. StatusPublished → DeferredNVD modified 2026-10-23 19:57
  2. StatusReceived → PublishedNVD modified 2026-10-23 13:27
  3. StatusPublished → ReceivedNVD modified 2026-10-23 14:17
  4. CVSS8.7 (v4.0, CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N) → 8.7 (v4.0, CVSS:4.0/AV: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)NVD modified 2026-10-23 14:17
  5. First seenCVSS 8.7 · stape-ioNVD modified 2026-10-23 13:27

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 6