CVE-2026-79667: fallo de gravedad alta en lin-snow Ech0
Ech0 before 4.4.3 Authentication Bypass via Scope Enforcement
Publicada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.2epss 0.3%
probabilidad de explotación
0.3%top 75% de las CVE
explotación observada
noninguna fuente lo reporta
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
Productos afectados
lin-snow · Ech0CVEs relacionadas — lin-snow Ech0
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