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CVE-2026-53637— Sylius: Cart FormComponent allows modification or deletion of an already-completed order

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是波兰Sylius公司开源的一套基于Symfony框架的电子商务平台。 Sylius 2.0.0至2.0.17版本、2.1.0至2.1.14版本和2.2.0至2.2.5版本存在安全漏洞，该漏洞源于购物车FormComponent工作流执行不当，订单完成时过期的LiveComponent无法检测订单状态变化，继续允许购物车操作，导致已认证客户可以修改或永久删除已完成订单。

CVSS 6.5 · Medium EPSS 0.36% · P30

Possible ATT&CK Techniques 1 AI

T1578.002 · Create Cloud Instance

Affected Version Matrix 3

VendorProduct Version RangeStatus
Sylius Sylius >= 2.0.0, < 2.0.18 affected
>= 2.1.0, < 2.1.15 affected
>= 2.2.0, < 2.2.6 affected
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I. Basic Information for CVE-2026-53637

Vulnerability Information
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Vulnerability Title
Sylius: Cart FormComponent allows modification or deletion of an already-completed order
Source: CVE Program / CVE List V5
Vulnerability Description
Sylius is an Open Source eCommerce Framework on Symfony. Versions 2.0.0 through 2.0.17, 2.1.0 through 2.1.14, and 2.2.0 through 2.2.5 contain an improper workflow enforcement vulnerability in the cart `FormComponent`. When an order is completed while its cart page remains open, the stale LiveComponent does not detect the order’s changed state and continues to permit cart actions, allowing an authenticated customer to modify or permanently delete an already completed order. Versions 2.0.18, 2.1.15, and 2.2.6 contain a patch. As a workaround, deployments can copy the patched `FormComponent` into the application's `src/` directory and override the `sylius_shop.twig.component.cart.form` service definition to use that class.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在过期或释放后对资源进行操作
Source: CVE Program / CVE List V5
Vulnerability Title
Sylius 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sylius是波兰Sylius公司开源的一套基于Symfony框架的电子商务平台。 Sylius 2.0.0至2.0.17版本、2.1.0至2.1.14版本和2.2.0至2.2.5版本存在安全漏洞，该漏洞源于购物车FormComponent工作流执行不当，订单完成时过期的LiveComponent无法检测订单状态变化，继续允许购物车操作，导致已认证客户可以修改或永久删除已完成订单。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

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

II. Public POCs for CVE-2026-53637

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III. Intelligence Information for CVE-2026-53637

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Vendor Advisories for CVE-2026-53637 (1)

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

CVE-2026-53639 6.3 MEDIUM Sylius: IDOR on Shop Payment Request API endpoints
CVE-2026-53638 4.3 MEDIUM Sylius: Channel-based payment method restriction bypass on shop account orders API endpoin

IV. Related Vulnerabilities

Same product: Sylius
Same vendor: Sylius
Same weakness: CWE-672