Vulnerability-Lookup

GHSA-WGP6-GQX5-628C

Vulnerability from github – Published: 2026-09-09 06:31 – Updated: 2026-09-09 06:31

Details

The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the NCWM_Kitconnect::run() function. This is due to the plugin registering the /wp-json/next_cart/v1/migration REST route with permission_callback set to __return_true and relying on a hardcoded fallback value of __token__ in get_option('nextcart_token', '__token__') when the nextcart_token option has not yet been written to the database. This makes it possible for unauthenticated attackers to bypass authentication to the migration endpoint by supplying the literal string __token__ as the token, gaining access to privileged handlers that pass attacker-controlled SQL directly to $wpdb->query() and $wpdb->get_results() — enabling arbitrary SQL execution including administrator account creation — and pass an attacker-controlled path to unlink(), enabling arbitrary file deletion and full site takeover. The hardcoded fallback is reachable whenever the nextcart_token option has not yet been populated, which occurs after WP-CLI, network, or programmatic plugin activation without a subsequent authenticated wp-admin visit, as token generation is deferred to admin_init via register_settings().

Severity

8.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-76009"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T06:17:16Z",
    "severity": "HIGH"
  },
  "details": "The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the `NCWM_Kitconnect::run()` function. This is due to the plugin registering the `/wp-json/next_cart/v1/migration` REST route with `permission_callback` set to `__return_true` and relying on a hardcoded fallback value of `__token__` in `get_option(\u0027nextcart_token\u0027, \u0027__token__\u0027)` when the `nextcart_token` option has not yet been written to the database. This makes it possible for unauthenticated attackers to bypass authentication to the migration endpoint by supplying the literal string `__token__` as the token, gaining access to privileged handlers that pass attacker-controlled SQL directly to `$wpdb-\u003equery()` and `$wpdb-\u003eget_results()` \u2014 enabling arbitrary SQL execution including administrator account creation \u2014 and pass an attacker-controlled path to `unlink()`, enabling arbitrary file deletion and full site takeover. The hardcoded fallback is reachable whenever the `nextcart_token` option has not yet been populated, which occurs after WP-CLI, network, or programmatic plugin activation without a subsequent authenticated `wp-admin` visit, as token generation is deferred to `admin_init` via `register_settings()`.",
  "id": "GHSA-wgp6-gqx5-628c",
  "modified": "2026-09-09T06:31:40Z",
  "published": "2026-09-09T06:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76009"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L120"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L23"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L336"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/main.php#L123"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/main.php#L40"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3686100%40nextcart-woocommerce-migration\u0026new=3686100%40nextcart-woocommerce-migration"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/739b57d9-8066-4c2a-9419-f6cd9409433c?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-76009 (GCVE-0-2026-76009)

Vulnerability from cvelistv5 – Published: 2026-09-09 05:31 – Updated: 2026-09-09 14:01

Title

Next-Cart Store to WooCommerce Migration <= 3.9.8 - Unauthenticated Authentication Bypass via Default '__token__' Fallback in REST Migration Endpoint

Summary

The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the `NCWM_Kitconnect::run()` function. This is due to the plugin registering the `/wp-json/next_cart/v1/migration` REST route with `permission_callback` set to `__return_true` and relying on a hardcoded fallback value of `__token__` in `get_option('nextcart_token', '__token__')` when the `nextcart_token` option has not yet been written to the database. This makes it possible for unauthenticated attackers to bypass authentication to the migration endpoint by supplying the literal string `__token__` as the token, gaining access to privileged handlers that pass attacker-controlled SQL directly to `$wpdb->query()` and `$wpdb->get_results()` — enabling arbitrary SQL execution including administrator account creation — and pass an attacker-controlled path to `unlink()`, enabling arbitrary file deletion and full site takeover. The hardcoded fallback is reachable whenever the `nextcart_token` option has not yet been populated, which occurs after WP-CLI, network, or programmatic plugin activation without a subsequent authenticated `wp-admin` visit, as token generation is deferred to `admin_init` via `register_settings()`.

Severity

8.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 14:01 UTC

CWE

CWE-287 - Improper Authentication

Assigner

Wordfence mitre root Scorecard

References

7 references

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

Impacted products

1 product

Vendor	Product	Version
martinnguyen1990	Next-Cart Store to WooCommerce Migration	Affected: 0 , ≤ 3.9.8 (semver)

Credits

Samuele Santonicola

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-76009",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-09T14:01:21.461808Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-09-09T14:01:28.611Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Next-Cart Store to WooCommerce Migration",
          "vendor": "martinnguyen1990",
          "versions": [
            {
              "lessThanOrEqual": "3.9.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Samuele Santonicola"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the `NCWM_Kitconnect::run()` function. This is due to the plugin registering the `/wp-json/next_cart/v1/migration` REST route with `permission_callback` set to `__return_true` and relying on a hardcoded fallback value of `__token__` in `get_option(\u0027nextcart_token\u0027, \u0027__token__\u0027)` when the `nextcart_token` option has not yet been written to the database. This makes it possible for unauthenticated attackers to bypass authentication to the migration endpoint by supplying the literal string `__token__` as the token, gaining access to privileged handlers that pass attacker-controlled SQL directly to `$wpdb-\u003equery()` and `$wpdb-\u003eget_results()` \u2014 enabling arbitrary SQL execution including administrator account creation \u2014 and pass an attacker-controlled path to `unlink()`, enabling arbitrary file deletion and full site takeover. The hardcoded fallback is reachable whenever the `nextcart_token` option has not yet been populated, which occurs after WP-CLI, network, or programmatic plugin activation without a subsequent authenticated `wp-admin` visit, as token generation is deferred to `admin_init` via `register_settings()`."
        }
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      "metrics": [
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            "version": "3.1"
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        "dateUpdated": "2026-09-09T05:31:04.903Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/739b57d9-8066-4c2a-9419-f6cd9409433c?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L23"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/main.php#L40"
        },
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          "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/main.php#L123"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/nextcart-woocommerce-migration/trunk/includes/carts/kitconnect-api.php#L120"
        },
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        },
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          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3686100%40nextcart-woocommerce-migration\u0026new=3686100%40nextcart-woocommerce-migration"
        }
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      "timeline": [
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          "lang": "en",
          "time": "2026-08-26T05:32:35.000Z",
          "value": "Vendor Notified"
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          "time": "2026-09-08T17:22:58.000Z",
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      "title": "Next-Cart Store to WooCommerce Migration \u003c= 3.9.8 - Unauthenticated Authentication Bypass via Default \u0027__token__\u0027 Fallback in REST Migration Endpoint"
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    "datePublished": "2026-09-09T05:31:04.903Z",
    "dateReserved": "2026-08-18T18:55:14.714Z",
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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.

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.
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GHSA-WGP6-GQX5-628C

CVE-2026-76009 (GCVE-0-2026-76009)

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