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CVE-2026-103319

5.3 medium SSVC exploitation: none Deferred
NVD · CVE.org

The OPay Payment Gateway for WooCommerce WordPress plugin through 2.5.5 does not properly verify that payment notifications originate from the payment provider, as the secret used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid, cancelled or failed.

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 7

  1. StatusPublished → DeferredNVD modified 2026-10-26 13:50
  2. StatusReceived → PublishedNVD modified 2026-10-26 10:13
  3. CwesCWE-287NVD modified 2026-10-26 11:16
  4. StatusPublished → ReceivedNVD modified 2026-10-26 11:16
  5. CVSS5.3 (v3.1, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)NVD modified 2026-10-26 11:16
  6. StatusReceived → PublishedNVD modified 2026-10-26 06:00
  7. First seenunscoredNVD modified 2026-10-26 07:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1