CVE-2026-31821

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Sylius/Sylius/security/advisories/GHSA-wjmg-4cq5-m8hg	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:sylius:sylius::::::::
	cpe:2.3:a:sylius:sylius::::::::
	cpe:2.3:a:sylius:sylius::::::::

History

No history.

Information

Published : 2026-03-10 22:16

Updated : 2026-03-11 19:33

NVD link : CVE-2026-31821

Mitre link : CVE-2026-31821

CVE.ORG link : CVE-2026-31821

JSON object : View

Products Affected

sylius

sylius

CWE

CWE-862

Missing Authorization

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