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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 2
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Sylius Sylius
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
|
2.0.0
|
2.1.16
|
|
Sylius Sylius
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
|
2.2.0
|
2.2.9
|
References 6
https://github.com/Sylius/Sylius
disclosure@vulncheck.com
https://github.com/Sylius/Sylius/commit/9e9aeaacbc97b1fc01d573e44d6679194527905d
disclosure@vulncheck.com
https://github.com/Sylius/Sylius/pull/19216
disclosure@vulncheck.com
https://github.com/Sylius/Sylius/releases/tag/v2.2.9
disclosure@vulncheck.com
https://github.com/Sylius/Sylius/security/advisories/GHSA-vv4h-q2x8-74g4
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/sylius-2-x-before-2.1.16-and-2.2.9-payment…
disclosure@vulncheck.com