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I. Basic Information for CVE-2026-31821
Vulnerability Information

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Vulnerability Title
Sylius is Missing Authorization in API v2 Add Item Endpoint
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sylius 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sylius是波兰Sylius公司的一套基于Symfony框架的开源电子商务平台。 Sylius存在安全漏洞,该漏洞源于POST /api/v2/shop/orders/{tokenValue}/items端点未验证购物车所有权,可能导致未经验证的攻击者向其他客户的购物车添加商品。以下版本受到影响:2.0.16之前版本、2.1.12之前版本和2.2.3之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
SyliusSylius >= 2.2.0, < 2.2.3 -
II. Public POCs for CVE-2026-31821
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III. Intelligence Information for CVE-2026-31821
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IV. Related Vulnerabilities
V. Comments for CVE-2026-31821

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