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CVE-2026-31821

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CVE-2026-31821

Published: Mar 10, 2026

Modified: Mar 11, 2026

PUBLISHED

Description

Sylius is an Open Source eCommerce Framework on Symfony. The POST /api/v2/shop/orders/{tokenValue}/items endpoint does not verify cart ownership. An unauthenticated attacker can add items to other registered customers' carts by knowing the cart tokenValue. An attacker who obtains a cart tokenValue can add arbitrary items to another customer's cart. The endpoint returns the full cart representation in the response (HTTP 201). The issue is fixed in versions: 2.0.16, 2.1.12, 2.2.3 and above.

VendorProductVersions

Sylius

Sylius

affected
>= 2.2.0, < 2.2.3
affected
>= 2.1.0, < 2.1.12
affected
>= 2.0.0, < 2.0.16

Weaknesses (CWE)

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