{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Sylius",
          "vendor": "Sylius",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.0.18"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.1.0, \u003c 2.1.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.2.0, \u003c 2.2.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Sylius is an Open Source eCommerce Framework on Symfony. Starting in version 2.0.0 and prior to version 2.0.18, 2.1.15, and 2.2.6, an authorization bypass vulnerability exists in the shop account API. The `PATCH /api/v2/shop/account/orders/{tokenValue}/payments/{paymentId}` endpoint, used by an authenticated shop customer to change the payment method of an order that has been placed but not yet paid (state `STATE_NEW`), does not validate that the chosen payment method is enabled for the order\u0027s channel. The equivalent checkout endpoint (`PATCH /api/v2/shop/orders/{tokenValue}/payments/{paymentId}`) correctly rejects out-of-channel payment methods with `HTTP 422`; the account endpoint silently accepts them and returns `HTTP 200`. An authenticated customer can therefore assign any globally enabled payment method to their own placed order, including methods that the store operator has explicitly excluded from that channel. The issue is fixed in versions: 2.0.18, 2.1.15, 2.2.6 and above. As a workaround, decorate the `Sylius\\Bundle\\ApiBundle\\Changer\\PaymentMethodChangerInterface` service in the application."
    }
  ],
  "id": "CVE-2026-53638",
  "lastModified": "2026-09-09T21:04:42.813",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-08T23:17:24.840",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Sylius/Sylius/security/advisories/GHSA-6955-hrm5-c4qp"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "sylius/sylius"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.0.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "sylius/sylius"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.1.0"
            },
            {
              "fixed": "2.1.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "sylius/sylius"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-53638"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-09T21:03:46Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\nAn authorization bypass vulnerability exists in the shop account API. The `PATCH /api/v2/shop/account/orders/{tokenValue}/payments/{paymentId}` endpoint, used by an authenticated shop customer to change the payment method of an order that has been placed but not yet paid (state `STATE_NEW`), does not validate that the chosen payment method is enabled for the order\u0027s channel. The equivalent checkout endpoint (`PATCH /api/v2/shop/orders/{tokenValue}/payments/{paymentId}`) correctly rejects out-of-channel payment methods with `HTTP 422`; the account endpoint silently accepts them and returns `HTTP 200`.\n\nAn authenticated customer can therefore assign any globally enabled payment method to their own placed order, including methods that the store operator has explicitly excluded from that channel. \n\n### Patches\nThe issue is fixed in versions: 2.0.18, 2.1.15, 2.2.6 and above.\n\n### Workarounds\nIf users cannot bump Sylius right now, decorate the `Sylius\\Bundle\\ApiBundle\\Changer\\PaymentMethodChangerInterface` service in their applications. \n\n#### Step 1. Create the decorator\n\n`src/Decorator/ChannelCheckingPaymentMethodChanger.php`:\n\n```php\n\u003c?php\n\ndeclare(strict_types=1);\n\nnamespace App\\Decorator;\n\nuse ApiPlatform\\Validator\\Exception\\ValidationException;\nuse Sylius\\Bundle\\ApiBundle\\Changer\\PaymentMethodChangerInterface;\nuse Sylius\\Component\\Core\\Model\\OrderInterface;\nuse Sylius\\Component\\Core\\Model\\PaymentMethodInterface;\nuse Sylius\\Component\\Core\\Repository\\PaymentMethodRepositoryInterface;\nuse Sylius\\Component\\Core\\Repository\\PaymentRepositoryInterface;\nuse Sylius\\Component\\Payment\\Resolver\\PaymentMethodsResolverInterface;\nuse Symfony\\Component\\Validator\\ConstraintViolation;\nuse Symfony\\Component\\Validator\\ConstraintViolationList;\nuse Symfony\\Contracts\\Translation\\TranslatorInterface;\n\nfinal readonly class ChannelCheckingPaymentMethodChanger implements PaymentMethodChangerInterface\n{\n    public function __construct(\n        private PaymentMethodChangerInterface $decorated,\n        private PaymentRepositoryInterface $paymentRepository,\n        private PaymentMethodRepositoryInterface $paymentMethodRepository,\n        private PaymentMethodsResolverInterface $paymentMethodsResolver,\n        private TranslatorInterface $translator,\n    ) {\n    }\n\n    public function changePaymentMethod(string $paymentMethodCode, mixed $paymentId, OrderInterface $order): OrderInterface\n    {\n        /** @var PaymentMethodInterface|null $paymentMethod */\n        $paymentMethod = $this-\u003epaymentMethodRepository-\u003efindOneBy([\u0027code\u0027 =\u003e $paymentMethodCode]);\n        $payment = $this-\u003epaymentRepository-\u003efindOneByOrderId($paymentId, $order-\u003egetId());\n\n        if (\n            $paymentMethod !== null\n            \u0026\u0026 $payment !== null\n            \u0026\u0026 !in_array($paymentMethod, $this-\u003epaymentMethodsResolver-\u003egetSupportedMethods($payment), true)\n        ) {\n            $template = \u0027sylius.payment_method.not_available\u0027;\n            $parameters = [\u0027%name%\u0027 =\u003e (string) $paymentMethod-\u003egetName()];\n\n            throw new ValidationException(new ConstraintViolationList([\n                new ConstraintViolation(\n                    message: $this-\u003etranslator-\u003etrans($template, $parameters, \u0027validators\u0027),\n                    messageTemplate: $template,\n                    parameters: $parameters,\n                    root: $paymentMethodCode,\n                    propertyPath: \u0027\u0027,\n                    invalidValue: $paymentMethodCode,\n                ),\n            ]));\n        }\n\n        return $this-\u003edecorated-\u003echangePaymentMethod($paymentMethodCode, $paymentId, $order);\n    }\n}\n```\n\n#### Step 2. Register the decorator\n\n`config/services.yaml` (append to the application\u0027s existing `services:` block):\n\n```yaml\nservices:\n    App\\Decorator\\ChannelCheckingPaymentMethodChanger:\n        decorates: sylius_api.changer.payment_method\n        arguments:\n            - \u0027@.inner\u0027\n            - \u0027@sylius.repository.payment\u0027\n            - \u0027@sylius.repository.payment_method\u0027\n            - \u0027@sylius.resolver.payment_methods\u0027\n            - \u0027@translator\u0027\n```\n\n`@.inner` references the original `PaymentMethodChangerInterface` implementation, so any future Sylius change to the changer keeps working through the decorator.\n\n#### Step 3. Clear the cache\n\n```bash\nbin/console cache:clear\n```\n\n### Reporters\n\nWe would like to extend our gratitude to the following individuals for their detailed reporting and responsible disclosure of this vulnerability:\n- Fredrik Dietrichson (@FredrikEV)\n\n### For more information\n\nIf there are any questions or comments about this advisory:\n\n- Open an issue in [Sylius issues](https://github.com/Sylius/Sylius/issues?q=sort%3Aupdated-desc+is%3Aissue+is%3Aopen)\n- Send an email to [security@sylius.com](mailto:security@sylius.com)",
  "id": "GHSA-6955-hrm5-c4qp",
  "modified": "2026-07-09T21:03:46Z",
  "published": "2026-07-09T21:03:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Sylius/Sylius/security/advisories/GHSA-6955-hrm5-c4qp"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Sylius/Sylius"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Sylius: Channel-based payment method restriction bypass on shop account orders API endpoint"
}