CVE-2026-100869
Sylius 2.x before 2.1.16 and 2.2.9 Arbitrary Payment Action via Shop API
- State
- Published
- Severity
- 8.2 High
- Published
- Sep 27, 2026
- Updated
- Oct 6, 2026
- Reserved
- Sep 27, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | VulnCheck |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
SyliusSylius |
|
References
- GitHub Security Advisory (GHSA-2rv4-pjmm-7fxf)vendor-advisory
- https://github.com/Sylius/Sylius/pull/19214patchissue-tracking
- https://github.com/Sylius/Sylius/commit/5813831f60f3a60b735a86a57c4b519626a3b75dpatch
- Sylius v2.2.9 Release Notesrelease-notes
- https://github.com/Sylius/Syliusproduct
- VulnCheck Advisory: Sylius 2.x before 2.1.16 and 2.2.9 Arbitrary Payment Action via Shop APIthird-party-advisory
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