Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-08-22 06:00 – Updated: 2026-08-23 15:33

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

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-23 15:27 UTC

CWE

CWE-284 Improper Access Control
CWE-284 - Improper Access Control

Assigner

WPScan mitre root

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/89a2917e-032c-4f…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version	CPE status
Unknown	Conekta Payment Gateway	Affected: 0 , < 6.2.2 (semver)	guessed

Credits

Pedro Pinho WPScan

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
              "version": "3.1"
            }
          },
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            "other": {
              "content": {
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                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
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                "timestamp": "2026-08-23T15:27:19.222935Z",
                "version": "2.0.3"
              },
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            }
          }
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        "problemTypes": [
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              }
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        ],
        "providerMetadata": {
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          "shortName": "CISA-ADP"
        },
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      }
    ],
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          "product": "Conekta Payment Gateway",
          "vendor": "Unknown",
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            {
              "lessThan": "6.2.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Pedro Pinho"
        },
        {
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        }
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      "problemTypes": [
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            {
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              "lang": "en",
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            }
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      "references": [
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          "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": "2026-08-23T15:33:42.491Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-16738",
      "date": "2026-08-23",
      "epss": "0.00159",
      "percentile": "0.05549"
    },
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    "vulnrichment": {
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    }
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}

FKIE_CVE-2026-16738

Vulnerability from fkie_nvd - Published: 2026-08-22 06:16 - Updated: 2026-08-22 06:16

Severity

Summary

References

	URL	Tags
	contact@wpscan.com	https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-1a50b9d6fddf/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Conekta Payment Gateway",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "6.2.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "contact@wpscan.com"
    }
  ],
  "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."
    }
  ],
  "id": "CVE-2026-16738",
  "lastModified": "2026-08-22T06:16:15.383",
  "metrics": {},
  "published": "2026-08-22T06:16:15.383",
  "references": [
    {
      "source": "contact@wpscan.com",
      "url": "https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-1a50b9d6fddf/"
    }
  ],
  "sourceIdentifier": "contact@wpscan.com",
  "vulnStatus": "Received"
}

GHSA-4VWP-Q9WH-XXQ2

Vulnerability from github – Published: 2026-08-22 06:31 – Updated: 2026-08-22 06:31

Details

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-16738"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-22T06:16:15Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-4vwp-q9wh-xxq2",
  "modified": "2026-08-22T06:31:27Z",
  "published": "2026-08-22T06:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16738"
    },
    {
      "type": "WEB",
      "url": "https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-1a50b9d6fddf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

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

FKIE_CVE-2026-16738

GHSA-4VWP-Q9WH-XXQ2

Tags

Sightings

Nomenclature