Vulnerability-Lookup

CVE-2026-82215 (GCVE-0-2026-82215)

Vulnerability from cvelistv5 – Published: 2026-09-11 10:56 – Updated: 2026-09-11 12:07

Title

WC PayPay Gateway 0.5 - 0.9.3 - Unauthenticated Payment Bypass via Unverified Webhook

Summary

The Payment Gateway PayPay for WooCommerce WordPress plugin from 0.5 to 0.9.3 does not verify the authenticity of the payment notifications it receives before acting on them, allowing unauthenticated attackers who know the store's merchant identifier to mark arbitrary orders as paid, or to cancel or fail them.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-11 12:05 UTC

CWE

CWE-345 Insufficient Verification of Data Authenticity
CWE-345 - Insufficient Verification of Data Authenticity

Assigner

WPScan mitre root

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/c7703a51-9d5d-44…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version	CPE status
Unknown	Payment Gateway PayPay for WooCommerce	Affected: 0.5 , ≤ 0.9.3 (semver)	guessed

Credits

Pedro Pinho WPScan

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-82215

Vulnerability from fkie_nvd - Published: 2026-09-11 11:16 - Updated: 2026-09-11 17:35

Severity

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

References

	URL	Tags
	contact@wpscan.com	https://wpscan.com/vulnerability/c7703a51-9d5d-4483-b214-7249701ee9ff/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unknown",
          "product": "Payment Gateway PayPay for WooCommerce",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThanOrEqual": "0.9.3",
              "status": "affected",
              "version": "0.5",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "contact@wpscan.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Payment Gateway PayPay for WooCommerce WordPress plugin from 0.5 to 0.9.3 does not verify the authenticity of the payment notifications it receives before acting on them, allowing unauthenticated attackers who know the store\u0027s merchant identifier to mark arbitrary orders as paid, or to cancel or fail them."
    }
  ],
  "id": "CVE-2026-82215",
  "lastModified": "2026-09-11T17:35:21.440",
  "metrics": {
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          "attackVector": "NETWORK",
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          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
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GHSA-352X-WHPM-97Q9

Vulnerability from github – Published: 2026-09-11 12:33 – Updated: 2026-09-11 12:33

Details

Severity

5.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-82215"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-345"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-11T11:16:55Z",
    "severity": "MODERATE"
  },
  "details": "The Payment Gateway PayPay for WooCommerce WordPress plugin from 0.5 to 0.9.3 does not verify the authenticity of the payment notifications it receives before acting on them, allowing unauthenticated attackers who know the store\u0027s merchant identifier to mark arbitrary orders as paid, or to cancel or fail them.",
  "id": "GHSA-352x-whpm-97q9",
  "modified": "2026-09-11T12:33:25Z",
  "published": "2026-09-11T12:33:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82215"
    },
    {
      "type": "WEB",
      "url": "https://wpscan.com/vulnerability/c7703a51-9d5d-4483-b214-7249701ee9ff"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

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-2026-82215 (GCVE-0-2026-82215)

FKIE_CVE-2026-82215

GHSA-352X-WHPM-97Q9

Tags

Sightings

Nomenclature