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CVE-2026-53638— Sylius: Channel-based payment method restriction bypass on shop account orders API endpoint

Quick assessment

Affected
Sylius Sylius
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sylius 是一个基于 Symfony 的开源电子商务框架。从 2.0.0 版本开始，到 2.0.18、2.1.15 和 2.2.6 之前的版本中，商店账户 API 中存在一个授权绕过漏洞。 端点供已认证的商店客户修改已下单但尚未付款（状态为 ）订单的支付方式，但该端点未验证所选支付方式是否在订单所属渠道中启用。相比之下，对应的结账端点（ ）会正确拒绝不属于该渠道的支付方式并返回 ；而账户端点则静默接受并返回 。因此，已认证的客户可以将其自身已下的订单分配任何全局启用的支付方式，包括店铺运营者明确从该渠道中排除的

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-53638

Vulnerability Information
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Vulnerability Title
Sylius: Channel-based payment method restriction bypass on shop account orders API endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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's 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Sylius Sylius >= 2.0.0, < 2.0.18 -

II. Public POCs for CVE-2026-53638

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III. Intelligence Information for CVE-2026-53638

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Vendor Advisories for CVE-2026-53638 (1)

Same Patch Batch · Sylius · 2026-09-08 · 3 CVEs total

CVE-2026-53637 6.5 MEDIUM Sylius: Cart FormComponent allows modification or deletion of an already-completed order
CVE-2026-53639 6.3 MEDIUM Sylius: IDOR on Shop Payment Request API endpoints

IV. Related Vulnerabilities

Same product: Sylius
Same vendor: Sylius
Same weakness: CWE-863

V. Comments for CVE-2026-53638

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