Vulnerabilidad · Publicado 25/08/2026
Ech0 versiones 4.3.4 y anteriores no validan correctamente los scopes de tokens de acceso en rutas administrativas privilegiadas (/api/inbox, /api/panel/comments, /api/backup/export), permitiendo a atacantes con tokens limitados ejecutar operaciones administrativas. El gestor de exportación de respaldos descarta completamente la validación de metadatos, exponiendo datos sensibles de usuarios y configuraciones altas en infraestructuras de LATAM.
Ech0 version 4.3.4 and earlier fails to reliably enforce scoped access token (least-privilege) restrictions on several privileged admin routes. Multiple privileged endpoints (e.g., /api/inbox, /api/panel/comments, /api/backup/export) omit scope checks and authorize based only on the user's admin role, and the backup export handler discards token scope metadata entirely. An attacker holding a deliberately limited (low-scope) admin access token can reach broader privileged functionality than intended, including reading the inbox and exporting a full database backup ZIP archive. Fixed in 4.4.3.
Score: 7.6/10 — Severidad: HIGH — Estado NIST: Received
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
CWE-285
Publicado en NIST NVD.