CVE-2026-31821
Last modified
CVE-2026-31821 is a medium-severity vulnerability rated 6.9/10 on the CVSS scale. Sylius is an Open Source eCommerce Framework on Symfony. The POST /api/v2/shop/orders/{tokenValue}/items endpoint does not verify cart ownership. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
Description
Sylius is an Open Source eCommerce Framework on Symfony. The POST /api/v2/shop/orders/{tokenValue}/items endpoint does not verify cart ownership. An unauthenticated attacker can add items to other registered customers' carts by knowing the cart tokenValue. An attacker who obtains a cart tokenValue can add arbitrary items to another customer's cart. The endpoint returns the full cart representation in the response (HTTP 201). The issue is fixed in versions: 2.0.16, 2.1.12, 2.2.3 and above.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sylius | Sylius | >= 2.0.0, < 2.0.16 |
| Sylius | Sylius | >= 2.1.0, < 2.1.12 |
| Sylius | Sylius | >= 2.2.0, < 2.2.3 |
References
- https://github.com/Sylius/Sylius/security/advisories/GHSA-wjmg-4cq5-m8hgMitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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