CVE-2026-53445

Received Received - Intake

Wekan Board Copy Privilege Escalation Vulnerability

Publication date: 2026-07-15

Last updated on: 2026-07-15

Assigner: GitHub, Inc.

Description

Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan copyBoard Meteor DDP method in server/publications/boards.js copies a board by caller-supplied board ID without checking this.userId, membership, or admin access. Any authenticated user can copy a private board they are not a member of, including its cards, checklists, custom fields, labels, and rules, while the REST POST /api/boards/:boardId/copy path correctly checks board admin access. This issue is fixed in version 9.32.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-15

Last Modified

2026-07-15

Generated

2026-07-16

AI Q&A

2026-07-16

EPSS Evaluated

N/A

NVD

CVE-2026-53445

Affected Vendors & Products

Vendor	Product	Version / Range
wekan	wekan	to 9.32 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

Wekan is an open-source kanban tool built with Meteor. A vulnerability exists in versions prior to 9.32 where the copyBoard method allows any authenticated user to copy a private board they are not a member of by exploiting a missing access check. This exposes sensitive board data like cards, checklists, and rules.

Impact Analysis

An attacker could access and copy private boards containing sensitive information without proper authorization. This could lead to data leaks, unauthorized access to internal workflows, or exposure of confidential project details.

Compliance Impact

This vulnerability could violate compliance requirements by allowing unauthorized access to protected data. GDPR and HIPAA mandate strict access controls; this flaw undermines those controls, potentially leading to data breaches and non-compliance penalties.

Detection Guidance

To detect this vulnerability, check if your Wekan instance is running a version prior to 9.32. Inspect server logs for unauthorized board copy attempts via the copyBoard method. Look for REST API calls to POST /api/boards/:boardId/copy from non-admin users.

Mitigation Strategies

Upgrade Wekan to version 9.32 or later immediately. Ensure all users have appropriate access controls and review board membership permissions. Monitor for any unauthorized board copies or data exposure.

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