Sylius versions before 2.1.16 and 2.2.9 fail to validate payment amounts during cart recalculation, allowing unauthenticated attackers to modify order totals after gateway transaction initiation. Attackers can pay a small amount, enlarge the order after gateway capture, and have the system mark the inflated order as fully paid while the gateway captured only the original amount.
Advisories

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Fixes

Solution

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Workaround

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History

Sun, 27 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description Sylius versions before 2.1.16 and 2.2.9 fail to validate payment amounts during cart recalculation, allowing unauthenticated attackers to modify order totals after gateway transaction initiation. Attackers can pay a small amount, enlarge the order after gateway capture, and have the system mark the inflated order as fully paid while the gateway captured only the original amount.
Title Sylius 2.x before 2.1.16 and 2.2.9 Payment Amount Overwrite
First Time appeared Sylius
Sylius sylius
Weaknesses CWE-345
CPEs cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
Vendors & Products Sylius
Sylius sylius
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-27T14:29:46.185Z

Reserved: 2026-09-27T00:20:54.408Z

Link: CVE-2026-100872

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-27T13:16:38.523

Modified: 2026-09-27T13:16:38.523

Link: CVE-2026-100872

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-27T14:45:17Z

Weaknesses