CVE-2026-68559

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/wekan/wekan/commit/7bbd1a3fad5d868fd01d79b5908913e215698e8e
https://github.com/wekan/wekan/releases/tag/v9.74
https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533
https://github.com/wekan/wekan/security/advisories/GHSA-mwq8-ccpm-r533

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-19 20:17

Updated : 2026-09-09 21:15

NVD link : CVE-2026-68559

Mitre link : CVE-2026-68559

CVE.ORG link : CVE-2026-68559

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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