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.

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Solution

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Workaround

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History

Mon, 28 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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: 2026-09-28T15:09:11.852Z

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

Link: CVE-2026-100872

cve-icon Vulnrichment

Updated: 2026-09-28T15:09:04.219Z

cve-icon NVD

Status : Deferred

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

Modified: 2026-09-28T20:57:50.143

Link: CVE-2026-100872

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses