CVE-2025-65779 is a security vulnerability identified in Wekan, an open-source kanban board system widely used for project and task management. The vulnerability exists in versions up to 18.15 and stems from improper authorization logic in the Boards.allow function. Specifically, this function returns true without verifying the userId, allowing unauthenticated attackers to update the 'sort' attribute of boards. This 'sort' value controls the order in which boards are displayed, so an attacker can arbitrarily reorder boards without any authentication or user interaction. While this does not directly expose sensitive data or allow code execution, it undermines the integrity of the board's organization, potentially causing confusion, workflow disruption, or denial of orderly access to project information. The vulnerability was publicly disclosed and fixed in version 18.16 of Wekan. No CVSS score has been assigned, and no known exploits have been reported in the wild as of the publication date. The flaw is primarily an authorization bypass issue affecting the integrity of board ordering, with no direct impact on confidentiality or availability.

For European organizations, the primary impact of CVE-2025-65779 is operational disruption and reduced trust in the integrity of project management workflows. Unauthorized reordering of boards can cause confusion among teams, misprioritization of tasks, and potential delays in project delivery. While this vulnerability does not expose sensitive data or allow system compromise, it can degrade productivity and collaboration efficiency. Organizations relying heavily on Wekan for agile project management or cross-team coordination may experience workflow interruptions. Additionally, the presence of an unauthenticated vector increases the risk of automated or opportunistic attacks, especially in publicly accessible deployments. Although the impact is not critical, it highlights the importance of proper authorization checks in collaborative software. European entities with compliance requirements around data integrity and operational continuity should prioritize remediation to maintain governance standards.

To mitigate CVE-2025-65779, organizations should immediately upgrade Wekan installations to version 18.16 or later, where the authorization flaw has been corrected. For environments where immediate upgrade is not feasible, implement network-level access controls to restrict public access to Wekan instances, such as VPNs or IP whitelisting. Conduct a thorough audit of user permissions and access control configurations to ensure no other endpoints suffer from similar authorization bypass issues. Monitor logs for unusual board reorder activities that could indicate exploitation attempts. Additionally, educate users about potential workflow anomalies and establish incident response procedures to quickly address any disruptions. Regularly review and apply security patches for all open-source collaboration tools to reduce exposure to similar vulnerabilities.