CVE-2026-72782

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An authenticated attacker with control panel access can render a malicious sandboxed Twig template and, using a blind error-based technique across many requests, incrementally leak arbitrary environment variables and secrets. These can be abused to forge sessions (via CRAFT_SECURITY_KEY), escalate privileges, and steal database, SMTP, API, or blob storage credentials. Fixed in 5.10.6 and 4.18.2."}, {"lang": "es", "value": "Las versiones de Craft CMS mayor o igual que 5.0.0-RC1 anteriores a la 5.10.6 y mayor o igual que 4.0.0-RC1 anteriores a la 4.18.2 interpolan variables de entorno y secretos (a trav\u00e9s de cadenas \u2019${ENV_VAR}\u2019 en el par\u00e1metro elementId) en plantillas Twig antes de la renderizaci\u00f3n, incluso cuando el sandbox de Twig est\u00e1 habilitado. Un atacante autenticado con acceso al panel de control puede renderizar una plantilla Twig maliciosa en un sandbox y, utilizando una t\u00e9cnica basada en errores ciegos a trav\u00e9s de muchas solicitudes, filtrar incrementalmente variables de entorno y secretos arbitrarios. Estos pueden ser utilizados indebidamente para falsificar sesiones (a trav\u00e9s de CRAFT_SECURITY_KEY), escalar privilegios y robar credenciales de base de datos, SMTP, API o almacenamiento de blobs. 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