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CVE-2026-42611

Estado: AnalizadaAlta (8.9)—

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a low-privileged (with the ability to create a page) user can cause XSS with the injection of svg element. The XSS can further be escalated to dump the entire system information available under /admin/config/info whenever a Super Admin visits the page; which can further be chained with the use of admin-nonce to do a complete server compromise (RCE). This vulnerability is fixed in 2.0.0-beta.2.

CVSS

Probabilidad de explotación (EPSS)

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 en elemento SVG (CWE-79, vector AV:N/AC:L/UI:R). Escalable a robo de datos de admin y ejecución remota via admin-nonce; impactos: lectura de config del sistema (T1005), JavaScript en navegador (T1059.007), y secuestro de cuenta admin (T1098.003).

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 TrainingUser Account ManagementPrivileged Account ManagementMulti-factor AuthenticationExecution Prevention

Tecnologías afectadas (1)

Getgrav — Grav

CWE

Referencias

JSON original (NVD)

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