Security Advisory

CVE-2026-52891

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-15 21:08:02

Last updated 2026-07-17 18:23:51

Assigner GitHub_M

CVSS score 9.9

State PUBLISHED

Description

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.

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