CVE-2026-100872
Sylius 2.x before 2.1.16 and 2.2.9 Payment Amount Overwrite
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-345 |
| Vendor | sylius |
| Product | sylius |
| Published | Sep 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
Sylius / Sylius
2.0.0 < 2.1.16 2.2.0 < 2.2.9
References
github.com: https://github.com/Sylius/Sylius/security/advisories/GHSA-vv4h-q2x8-74g4 github.com: https://github.com/Sylius/Sylius/pull/19216 github.com: https://github.com/Sylius/Sylius/commit/9e9aeaacbc97b1fc01d573e44d6679194527905d github.com: https://github.com/Sylius/Sylius/releases/tag/v2.2.9 github.com: https://github.com/Sylius/Sylius vulncheck.com: https://www.vulncheck.com/advisories/sylius-2-x-before-2.1.16-and-2.2.9-payment-amount-overwrite