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I. Basic Information for CVE-2026-20781
Vulnerability Information

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Vulnerability Title
CloudCharge cloudcharge.se Missing Authentication for Critical Function
Source: NVD (National Vulnerability Database)
Vulnerability Description
WebSocket endpoints lack proper authentication mechanisms, enabling attackers to perform unauthorized station impersonation and manipulate data sent to the backend. An unauthenticated attacker can connect to the OCPP WebSocket endpoint using a known or discovered charging station identifier, then issue or receive OCPP commands as a legitimate charger. Given that no authentication is required, this can lead to privilege escalation, unauthorized control of charging infrastructure, and corruption of charging network data reported to the backend.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
CloudCharge 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CloudCharge是瑞典CloudCharge公司的一个电动汽车充电管理平台网站。 CloudCharge存在访问控制错误漏洞,该漏洞源于WebSocket端点缺乏适当身份验证机制,可能导致未经授权的充电站模拟和数据操纵。
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
CloudChargecloudcharge.se All versions -
II. Public POCs for CVE-2026-20781
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III. Intelligence Information for CVE-2026-20781
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IV. Related Vulnerabilities
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