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I. Basic Information for CVE-2026-22808
Vulnerability Information

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Vulnerability Title
Fleet Windows MDM endpoint has a Cross-site Scripting vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
fleetdm/fleet is open source device management software. Prior to versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, if Windows MDM is enabled, an unauthenticated attacker can exploit this XSS vulnerability to steal a Fleet administrator's authentication token (FLEET::auth_token) from localStorage. This could allow unauthorized access to Fleet, including administrative access, visibility into device data, and modification of configuration. Versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, affected Fleet users should temporarily disable Windows MDM.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Fleet 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fleet是Fleet的一个开源的设备管理平台,支持多种操作系统和设备,帮助 IT 和安全团队进行设备管理、漏洞报告、MDM 等操作,免费且灵活。 Fleet存在跨站脚本漏洞,该漏洞源于跨站脚本漏洞,可能导致未经验证的攻击者窃取管理员身份验证令牌,从而获得未授权访问。以下版本受到影响:4.78.2版本之前版本、4.77.1版本之前版本、4.76.2版本之前版本、4.75.2版本之前版本和4.53.3版本之前版本。
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
fleetdmfleet >= 4.78.0, < 4.78.2 -
II. Public POCs for CVE-2026-22808
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III. Intelligence Information for CVE-2026-22808
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