CVE-2026-22808

Estado: AnalizadaMedia (5.5)—

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.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/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
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.25%
Percentil entre todas las CVEs puntuadas: 15
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Fleetdm — Fleet

CWE

CWE-79

Referencias

https://github.com/fleetdm/fleet/security/advisories/GHSA-gfpw-jgvr-cw4j

JSON original (NVD)

Mostrar

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          "options": [
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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      "value": "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."
    },
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      "value": "fleetdm/fleet es software de gestión de dispositivos de código abierto. Antes de las versiones 4.78.2, 4.77.1, 4.76.2, 4.75.2 y 4.53.3, si Windows MDM está habilitado, un atacante no autenticado puede explotar esta vulnerabilidad XSS para robar el token de autenticación de un administrador de Fleet (FLEET::auth_token) de localStorage. Esto podría permitir el acceso no autorizado a Fleet, incluyendo acceso administrativo, visibilidad de los datos del dispositivo y modificación de la configuración. Las versiones 4.78.2, 4.77.1, 4.76.2, 4.75.2 y 4.53.3 solucionan el problema. Si una actualización inmediata no es posible, los usuarios de Fleet afectados deberían deshabilitar temporalmente Windows MDM."
    }
  ],
  "lastModified": "2026-06-17T10:20:28.007",
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