CVE-2026-100869

Sylius versions before 2.1.16 and 2.2.9 fail to restrict payment request actions in the Shop API endpoint, allowing customers to trigger refunds on completed orders. Attackers with order tokens can submit arbitrary payment actions like refunds that payment gateways execute while Sylius maintains order as paid, causing financial loss.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Sylius/Sylius
https://github.com/Sylius/Sylius/commit/5813831f60f3a60b735a86a57c4b519626a3b75d
https://github.com/Sylius/Sylius/pull/19214
https://github.com/Sylius/Sylius/releases/tag/v2.2.9
https://github.com/Sylius/Sylius/security/advisories/GHSA-2rv4-pjmm-7fxf
https://www.vulncheck.com/advisories/sylius-2-x-before-2.1.16-and-2.2.9-arbitrary-payment-action-via-shop-api

Configurations

No configuration.

History

27 Sep 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-27 13:16

Updated : 2026-09-28 20:57

NVD link : CVE-2026-100869

Mitre link : CVE-2026-100869

CVE.ORG link : CVE-2026-100869

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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