CVE-2026-52891
CRITICAL SEVERITYCVSS Score & Metrics
Base Score
9.9 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability 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.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-78
Source
NVD
Vendor
wekan
Product
wekan
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