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CVE-2026-68559— Wekan: Broken access control in the Excel-export route (`/api/boards/:boardId/exportExcel`)

Quick assessment

Affected
wekan wekan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WeKan是WeKan团队的一款项目管理软件。 WeKan 9.57版本至9.74之前版本存在授权问题漏洞，该漏洞源于对异步授权检查处理不当，可能导致任何通过身份验证的非成员下载私有看板的卡片标题、描述、列表、泳道、成员和元数据。

CVSS 6.5 · Medium EPSS 0.29% · P21

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
wekan wekan >= 9.57, < 9.74 affected
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I. Basic Information for CVE-2026-68559

Vulnerability Information
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Vulnerability Title
Wekan: Broken access control in the Excel-export route (`/api/boards/:boardId/exportExcel`)
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
WeKan 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeKan是WeKan团队的一款项目管理软件。 WeKan 9.57版本至9.74之前版本存在授权问题漏洞，该漏洞源于对异步授权检查处理不当，可能导致任何通过身份验证的非成员下载私有看板的卡片标题、描述、列表、泳道、成员和元数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wekan wekan >= 9.57, < 9.74 -

II. Public POCs for CVE-2026-68559

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III. Intelligence Information for CVE-2026-68559

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Patches & Fixes for CVE-2026-68559 (2)

Vendor Advisories for CVE-2026-68559 (1)

Same Patch Batch · wekan · 2026-08-19 · 7 CVEs total

CVE-2026-68561 8.8 HIGH Wekan: a low-privilege board member escalates to board admin and takes over a private boar
CVE-2026-68899 8.7 HIGH Wekan: File Upload MIME Type Validation Bypass — Stored XSS via Missing System Binary Fall
CVE-2026-68558 8.5 HIGH Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix
CVE-2026-68560 7.7 HIGH Wekan:hell Injection in External Antivirus Scanner Path via asyncExec
CVE-2026-68900 7.6 HIGH Wekan: Stored XSS in HTML board exports through a card-title second parse
CVE-2026-68901 6.5 MEDIUM WeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to

IV. Related Vulnerabilities

Same product: wekan
Same vendor: wekan
Same weakness: CWE-639

V. Comments for CVE-2026-68559

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