{"id":"CVE-2026-103299","title":"nexi Alpha Bank for WooCommerce <= 2.2.0 - Unauthenticated Payment Confirmation Forgery via Empty Shared Secret","summary":"The Payment Gateway  WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank's payment-notification callback, allowing unauthenticated attackers to forge a valid notification …","severity":"none","cwe":["CWE-287"],"product":"Payment Gateway","affected":["payment_gateway <= 2.2.0"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T06:00:18.758Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103299","references":[{"url":"https://wpscan.com/vulnerability/0a1c3070-181d-49ea-9488-d0d7e4be419c/"}],"tags":["cve.org"],"ingestedAt":"2026-10-26T07:20:03.483Z","slug":"CVE-2026-103299","body":"## Overview\n\nThe Payment Gateway  WordPress plugin through 2.2.0 does not ensure a shared secret is configured before using it to authenticate the bank's payment-notification callback, allowing unauthenticated attackers to forge a valid notification and mark any WooCommerce order as paid on installs where the secret has not been set, and the same callback lets them move any pending order to a failed state whether or not the secret is configured.\n\n## Affected\n\n- `payment_gateway <= 2.2.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}