CVE-2026-52891: fallo crítico en wekan
Wekan: Shell Injection via Avatar Upload
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
28Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 9.9epss 0.8%
Wekan is open source kanban built with Meteor. Prior to 9.07, Wekan avatar upload functionality embeds user-supplied filenames into paths later passed to child_process.exec() for MIME-type detection. Because models/avatars.js and models/fileValidation.js used a shell command with the avatar filename, shell metacharacters such as backticks and $() in the filename could execute commands on the server. This issue is fixed in version 9.07.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Productos afectados
wekan · wekanCVEs relacionadas — wekan
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-55652CRITICALWekan: Header-login IP allowlist bypass via X-Forwarded-For spoofing in Wekan allows unauthenticated full account takeover (incl. admin)EPSS 0.6%CVE-2026-68560HIGHWekan:hell Injection in External Antivirus Scanner Path via asyncExecEPSS 0.6%CVE-2026-68901MEDIUMWeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to Uncaught Exception / Remote Denial of ServiceEPSS 0.5%CVE-2026-68899HIGHWekan: File Upload MIME Type Validation Bypass — Stored XSS via Missing System Binary FallbackEPSS 0.5%CVE-2026-68561HIGHWekan: a low-privilege board member escalates to board admin and takes over a private board via the `sort` collection-allow ruleEPSS 0.5%CVE-2026-53446MEDIUMWekan: Server-Side Request Forgery (SSRF) via webhook integration URLsEPSS 0.5%