---
id: CVE-2026-68559
title: Wekan is open source kanban built with Meteor
summary: >-
  Wekan is open source kanban built with Meteor. From 9.57 until 9.74, the
  /api/boards/:boardId/exportExcel route in models/exportExcel.js called the
  asynchronous exporterExcel.canExport(user) authorization guard from
  models/server/Exporte…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
published: '2026-08-19'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:15:59.613'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-68559'
references:
  - url: >-
      https://github.com/wekan/wekan/commit/7bbd1a3fad5d868fd01d79b5908913e215698e8e
    label: security-advisories@github.com
  - url: 'https://github.com/wekan/wekan/releases/tag/v9.74'
    label: security-advisories@github.com
  - url: 'https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533'
    label: security-advisories@github.com
  - url: 'https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00402
epssPercentile: 0.31588
ingestedAt: '2026-09-09T21:22:45.543Z'
---

## Overview

Wekan is open source kanban built with Meteor. From 9.57 until 9.74, the /api/boards/:boardId/exportExcel route in models/exportExcel.js called the asynchronous exporterExcel.canExport(user) authorization guard from models/server/ExporterExcel.js without awaiting it. The returned Promise was always truthy, so exporterExcel.build(res) ran even when board.isVisibleBy(user) would deny access, allowing any authenticated non-member to download private board card titles, descriptions, lists, swimlanes, members, and metadata. This issue is fixed in version 9.74.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.