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Medium

Sadad QA Payment 1.28 - Unauthenticated Arbitrary Order Payment Confirmation via Signature Bypass

Type: advisorySources: Official CVE List

The Sadad QA Payment WordPress plugin through 1.28 does not correctly verify the authenticity of incoming payment notifications, as the verification is keyed on a merchant secret that is empty by default and the rest of the signed data is attacker-controlled, allowing unauthenticated attackers to forge a valid confirmation and mark orders as paid without payment.

Products
Sadad QA Payment
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-103330
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 21:14 UTC · Revision 1

Source evidence

Sadad QA Payment 1.28 - Unauthenticated Arbitrary Order Payment Confirmation via Signature Bypass

core-cve · Original source

Published 28 Oct 2026, 10:45 UTC

The Sadad QA Payment WordPress plugin through 1.28 does not correctly verify the authenticity of incoming payment notifications, as the verification is keyed on a merchant secret that is empty by default and the rest of the signed data is attacker-controlled, allowing unauthenticated attackers to forge a valid confirmation and mark orders as paid without payment.

cve:CVE-2026-103330

Sadad QA Payment

Fixed versions: Not specified

Complete source record
{
  "id": "c3d9ecda5422040984528d4ffc9a52e0e2f6d0de7014066fb7a7c5691abca157",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-103330",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Sadad QA Payment 1.28 - Unauthenticated Arbitrary Order Payment Confirmation via Signature Bypass",
    "summary": "The Sadad QA Payment WordPress plugin through 1.28 does not correctly verify the authenticity of incoming payment notifications, as the verification is keyed on a merchant secret that is empty by default and the rest of the signed data is attacker-controlled, allowing unauthenticated attackers to forge a valid confirmation and mark orders as paid without payment.",
    "evidence": "cve:CVE-2026-103330",
    "products": [
      {
        "name": {
          "value": "Sadad QA Payment",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-103330",
      "aliases": [
        "CVE-2026-103330"
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
          }
        }
      ],
      "affected": [
        {
          "vendor": "Unknown",
          "product": "Sadad QA Payment",
          "versions": [
            {
              "status": "affected",
              "version": "1.28",
              "versionType": "semver",
              "lessThanOrEqual": "1.28"
            }
          ],
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unknown"
        }
      ],
      "modified": "2026-10-28T17:47:59.887Z",
      "provider": "cve",
      "references": [
        "https://wpscan.com/vulnerability/0681f5a8-a1cd-44b0-b7c8-c3eacbd9e96a/"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-103330",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-28T17:37:05.689292Z"
                  }
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "lang": "en",
                    "type": "CWE",
                    "cweId": "CWE-345",
                    "description": "CWE-345 Insufficient Verification of Data Authenticity"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-28T17:47:59.887Z"
            }
          }
        ],
        "cna": {
          "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
          "shortName": "WPScan",
          "dateUpdated": "2026-10-28T10:45:12.352Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-103330",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 468475,
  "published_at": "2026-10-28T10:45:12.352+00:00"
}