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GHSA-7CXM-23JC-4X3X

Vulnerability from github – Published: 2026-09-19 09:32 – Updated: 2026-09-19 09:32

Details

The Payment Gateway of Stripe for WooCommerce plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in all versions up to, and including, 5.0.8. This is due to the publicly accessible woocommerce_api_wt_stripe webhook endpoint (EH_Stripe_Webhook_Handler::handle()) wrapping the only call to \Stripe\Webhook::constructEvent() inside an if (!empty($endpoint_secret)) guard that is never entered on default installations — because the eh_stripe_webhook_secret option is empty after a fresh plugin install — causing the raw, attacker-controlled POST body to be decoded and processed as a fully trusted Stripe event without any signature verification, authentication, or authorization. This makes it possible for unauthenticated attackers to send forged Stripe webhook events to manipulate WooCommerce order statuses, including marking unpaid orders as paid or completed via payment_complete(), forcing legitimate orders into a failed state, fabricating dispute notifications, and injecting forged refund events. This vulnerability is only exploitable when the Stripe webhook signing secret has not been configured by an administrator; once a valid signing secret is saved, \Stripe\Webhook::constructEvent() is enforced and forged requests are rejected.

Severity

5.3 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-9832"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-19T08:16:55Z",
    "severity": "MODERATE"
  },
  "details": "The Payment Gateway of Stripe for WooCommerce plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in all versions up to, and including, 5.0.8. This is due to the publicly accessible `woocommerce_api_wt_stripe` webhook endpoint (`EH_Stripe_Webhook_Handler::handle()`) wrapping the only call to `\\Stripe\\Webhook::constructEvent()` inside an `if (!empty($endpoint_secret))` guard that is never entered on default installations \u2014 because the `eh_stripe_webhook_secret` option is empty after a fresh plugin install \u2014 causing the raw, attacker-controlled POST body to be decoded and processed as a fully trusted Stripe event without any signature verification, authentication, or authorization. This makes it possible for unauthenticated attackers to send forged Stripe webhook events to manipulate WooCommerce order statuses, including marking unpaid orders as paid or completed via `payment_complete()`, forcing legitimate orders into a failed state, fabricating dispute notifications, and injecting forged refund events. This vulnerability is only exploitable when the Stripe webhook signing secret has not been configured by an administrator; once a valid signing secret is saved, `\\Stripe\\Webhook::constructEvent()` is enforced and forged requests are rejected.",
  "id": "GHSA-7cxm-23jc-4x3x",
  "modified": "2026-09-19T09:32:12Z",
  "published": "2026-09-19T09:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9832"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.7/includes/class-eh-stripe-webhook-handler.php#L18"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.7/includes/class-eh-stripe-webhook-handler.php#L321"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.7/includes/class-eh-stripe-webhook-handler.php#L66"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.7/includes/class-eh-stripe-webhook-handler.php#L93"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.8/includes/class-eh-stripe-webhook-handler.php#L18"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.8/includes/class-eh-stripe-webhook-handler.php#L321"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.8/includes/class-eh-stripe-webhook-handler.php#L66"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/payment-gateway-stripe-and-woocommerce-integration/tags/5.0.8/includes/class-eh-stripe-webhook-handler.php#L93"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3575195%40payment-gateway-stripe-and-woocommerce-integration\u0026new=3575195%40payment-gateway-stripe-and-woocommerce-integration"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2cef154c-efb8-4455-9be6-e3cf8b95e9d3?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-9832 (GCVE-0-2026-9832)

Vulnerability from cvelistv5 – Published: 2026-09-19 07:43 – Updated: 2026-09-19 14:01

Title

Payment Gateway of Stripe for WooCommerce <= 5.0.8 - Unauthenticated Improper Verification of Cryptographic Signature via woocommerce_api_wt_stripe Webhook Endpoint

Summary

The Payment Gateway of Stripe for WooCommerce plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in all versions up to, and including, 5.0.8. This is due to the publicly accessible `woocommerce_api_wt_stripe` webhook endpoint (`EH_Stripe_Webhook_Handler::handle()`) wrapping the only call to `\Stripe\Webhook::constructEvent()` inside an `if (!empty($endpoint_secret))` guard that is never entered on default installations — because the `eh_stripe_webhook_secret` option is empty after a fresh plugin install — causing the raw, attacker-controlled POST body to be decoded and processed as a fully trusted Stripe event without any signature verification, authentication, or authorization. This makes it possible for unauthenticated attackers to send forged Stripe webhook events to manipulate WooCommerce order statuses, including marking unpaid orders as paid or completed via `payment_complete()`, forcing legitimate orders into a failed state, fabricating dispute notifications, and injecting forged refund events. This vulnerability is only exploitable when the Stripe webhook signing secret has not been configured by an administrator; once a valid signing secret is saved, `\Stripe\Webhook::constructEvent()` is enforced and forged requests are rejected.

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 2026-09-19 13:24 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

Wordfence mitre root

References

10 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/browser/paymen…
https://plugins.trac.wordpress.org/changeset?repo…

Impacted products

1 product

Vendor	Product	Version
themehigh	Payment Gateway of Stripe for WooCommerce	Affected: 0 , ≤ 5.0.8 (semver)

Credits

pradeep suvarna

Show details on NVD website

JSON

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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-19T13:24:24.417063Z",
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          "lang": "en",
          "value": "The Payment Gateway of Stripe for WooCommerce plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in all versions up to, and including, 5.0.8. This is due to the publicly accessible `woocommerce_api_wt_stripe` webhook endpoint (`EH_Stripe_Webhook_Handler::handle()`) wrapping the only call to `\\Stripe\\Webhook::constructEvent()` inside an `if (!empty($endpoint_secret))` guard that is never entered on default installations \u2014 because the `eh_stripe_webhook_secret` option is empty after a fresh plugin install \u2014 causing the raw, attacker-controlled POST body to be decoded and processed as a fully trusted Stripe event without any signature verification, authentication, or authorization. This makes it possible for unauthenticated attackers to send forged Stripe webhook events to manipulate WooCommerce order statuses, including marking unpaid orders as paid or completed via `payment_complete()`, forcing legitimate orders into a failed state, fabricating dispute notifications, and injecting forged refund events. This vulnerability is only exploitable when the Stripe webhook signing secret has not been configured by an administrator; once a valid signing secret is saved, `\\Stripe\\Webhook::constructEvent()` is enforced and forged requests are rejected."
        }
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      "metrics": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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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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.
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GHSA-7CXM-23JC-4X3X

CVE-2026-9832 (GCVE-0-2026-9832)

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