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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-31821

Sylius is Missing Authorization in API v2 Add Item Endpoint

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Sylius Sylius

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

References