CVE-2026-53444

Received Received - Intake

Unauthorized Organization and Team Modification in Wekan

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, Wekan OIDC-related Meteor methods in packages/wekan-oidc/oidc_server.js, server/models/org.js, and server/models/team.js are globally callable without the admin authorization checks used by their non-OIDC counterparts. Authenticated users can call setCreateOrgFromOidc, setOrgAllFieldsFromOidc, setCreateTeamFromOidc, setTeamAllFieldsFromOidc, boardRoutineOnLogin, or groupRoutineOnLogin to create or modify organizations and teams, and groupRoutineOnLogin can grant global admin privileges when PROPAGATE_OIDC_DATA is enabled. 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-2026-53444

Affected Vendors & Products

Vendor	Product	Version / Range
wekan	wekan	9.32

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.
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

Wekan is an open-source kanban tool built with Meteor. Prior to version 9.32, it had a vulnerability in its OIDC (OpenID Connect) authentication methods. These methods allowed authenticated users to create or modify organizations and teams without proper admin authorization checks. The affected methods include setCreateOrgFromOidc, setOrgAllFieldsFromOidc, setCreateTeamFromOidc, setTeamAllFieldsFromOidc, boardRoutineOnLogin, and groupRoutineOnLogin. If PROPAGATE_OIDC_DATA is enabled, groupRoutineOnLogin could even grant global admin privileges.

Impact Analysis

An attacker with valid credentials could exploit this to create unauthorized organizations or teams, modify existing ones, or escalate privileges to gain full admin access. This could lead to unauthorized access to sensitive data, disruption of workflows, or complete system compromise if admin privileges are obtained.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, violating GDPR's data protection principles or HIPAA's security requirements. Organizations using Wekan may face compliance violations, potential fines, or reputational damage if exploited.

Detection Guidance

To detect this vulnerability, check if your Wekan instance is running a version prior to 9.32. Inspect the files packages/wekan-oidc/oidc_server.js, server/models/org.js, and server/models/team.js for the presence of the vulnerable methods setCreateOrgFromOidc, setOrgAllFieldsFromOidc, setCreateTeamFromOidc, setTeamAllFieldsFromOidc, boardRoutineOnLogin, or groupRoutineOnLogin without proper admin authorization checks.

Mitigation Strategies

Immediately upgrade Wekan to version 9.32 or later to address the vulnerability. Ensure that admin authorization checks are properly enforced for OIDC-related methods. Review and restrict access to sensitive methods to prevent unauthorized modifications to organizations, teams, and admin privileges.

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