CVE-2026-16738 (GCVE-0-2026-16738)

Vulnerability from cvelistv5 – Published: 2026-08-22 06:00 – Updated: 2026-08-22 06:00
VLAI
Title
Conekta Payment Gateway < 6.2.2 - Unauthenticated Order Payment Completion via Webhook Forgery
Summary
The Conekta Payment Gateway WordPress plugin before 6.2.2 does not verify the authenticity of incoming payment gateway webhook notifications, nor bind the confirmed payment to the targeted order or verify its amount, allowing unauthenticated attackers to mark arbitrary orders as paid without payment.
Severity
No CVSS data available.
CWE
Assigner
References
URL Tags
https://wpscan.com/vulnerability/89a2917e-032c-4f… exploitvdb-entrytechnical-description
Impacted products
Vendor Product Version CPE status
Unknown Conekta Payment Gateway Affected: 0 , < 6.2.2 (semver)
guessed Create a notification for this product.
Credits
Pedro Pinho WPScan
Show details on NVD website
To clipboard 

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          "product": "Conekta Payment Gateway",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.2.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Pedro Pinho"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Conekta Payment Gateway WordPress plugin before 6.2.2 does not verify the authenticity of incoming payment gateway webhook notifications, nor bind the confirmed payment to the targeted order or verify its amount, allowing unauthenticated attackers to mark arbitrary orders as paid without payment."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-284 Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-22T06:00:16.315Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-1a50b9d6fddf/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Conekta Payment Gateway \u003c 6.2.2 - Unauthenticated Order Payment Completion via Webhook Forgery",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-16738",
    "datePublished": "2026-08-22T06:00:16.315Z",
    "dateReserved": "2026-07-23T08:16:28.988Z",
    "dateUpdated": "2026-08-22T06:00:16.315Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-16738",
      "date": "2026-08-22",
      "epss": "0.00159",
      "percentile": "0.05581"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-16738\",\"sourceIdentifier\":\"contact@wpscan.com\",\"published\":\"2026-08-22T06:16:15.383\",\"lastModified\":\"2026-08-22T06:16:15.383\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Conekta Payment Gateway WordPress plugin before 6.2.2 does not verify the authenticity of incoming payment gateway webhook notifications, nor bind the confirmed payment to the targeted order or verify its amount, allowing unauthenticated attackers to mark arbitrary orders as paid without payment.\"}],\"affected\":[{\"source\":\"contact@wpscan.com\",\"affectedData\":[{\"vendor\":\"Unknown\",\"product\":\"Conekta Payment Gateway\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"6.2.2\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-1a50b9d6fddf/\",\"source\":\"contact@wpscan.com\"}]}}"
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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