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CVE-2026-111232

Estado: AnalizadaMedia (4.8)—
Gravedad4.8Media · CVSS 4.0
Probabilidad de explotación0.90 %mayor que el 59 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

Netgate pfSense CE 2.3.0 hasta 2.9.0 contiene una vulnerabilidad de secuencias de comandos en sitios cruzados (XSS) almacenada que permite a usuarios autenticados con privilegios Firewall: Rules o NAT: Port Forward inyectar scripts a través del campo de color del separador. Los atacantes pueden enviar un valor de color separator[] manipulado que display_separator() muestra sin codificar en atributos class, ejecutándose en los navegadores de los administradores para realizar acciones de la WebGUI con sus privilegios.

Traducción automática del texto original de NVD (en inglés).

CVSS

Puntuación base
4.8
Versión
4.0
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.90 %
Percentil entre todas las CVEs puntuadas
59
Fecha de la puntuación
20/10/2026

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).

Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

XSS almacenado en el campo de color del separador (CWE-79, UI:P); el script se ejecuta en el navegador de administradores y realiza acciones de WebGUI con sus privilegios.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentUser TrainingExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Pfsense — Pfsense

CWE

Referencias

Mostrar las 5 referencias

JSON original (NVD)

Mostrar
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  "published": "2026-10-15T19:17:36.257",
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      "url": "https://abraxaslabs.tech/research/pfsense-ce-leftovers",
      "tags": [
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      "url": "https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/firewall_rules.php#L236-L245",
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      "lang": "en",
      "value": "Netgate pfSense CE 2.3.0 through 2.9.0 contains a stored cross-site scripting vulnerability that allows authenticated users with Firewall: Rules or NAT: Port Forward privileges to inject scripts via the separator color field. Attackers can submit a crafted separator[] color value that display_separator() renders unencoded into class attributes, executing in administrators' browsers to perform WebGUI actions with their privileges."
    }
  ],
  "lastModified": "2026-10-19T20:41:52.050",
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