CVE-2025-14660 identifies an improper access control vulnerability in DecoCMS Mesh, specifically within the createTool function located in the packages/sdk/src/mcp/teams/api.ts file of the Workspace Domain Handler component. This vulnerability arises from insufficient validation or enforcement of permissions on the 'domain' argument, allowing remote attackers to manipulate this parameter to bypass intended access restrictions. The vulnerability affects all versions up to 1.0.0-alpha.31. The attack vector is network-based (AV:N), with high attack complexity (AC:H), requiring no privileges (PR:N) or user interaction (UI:N). The impact on confidentiality, integrity, and availability is low (VC:L, VI:L, VA:L), indicating limited but non-negligible potential damage. The scope remains unchanged (S:U), and no security requirements such as integrity or confidentiality are bypassed beyond the affected component. While an exploit has been published, exploitation is considered difficult due to the complexity involved. The vendor has addressed the issue in version 1.0.0-alpha.32, and applying this update is the recommended remediation. This vulnerability highlights the importance of rigorous access control checks in API functions handling domain or team-related parameters to prevent unauthorized operations within collaborative environments.

For European organizations deploying DecoCMS Mesh, this vulnerability poses a risk of unauthorized access or manipulation within the Workspace Domain Handler, potentially allowing attackers to create or modify tools or resources without proper authorization. Although the impact on confidentiality, integrity, and availability is rated low, unauthorized access could lead to minor data exposure or disruption of collaborative workflows. The high complexity of exploitation reduces the likelihood of widespread attacks, but targeted attacks against organizations relying on DecoCMS Mesh for critical collaboration or content management could still occur. Given the remote attack vector and lack of required privileges, any exposed DecoCMS Mesh instance accessible over the network is at risk. European entities in sectors such as technology, media, and government that utilize DecoCMS Mesh may face operational disruptions or data integrity issues if unpatched. The absence of known exploits in the wild currently limits immediate impact, but the public availability of an exploit increases future risk if patches are not applied promptly.

European organizations should immediately upgrade DecoCMS Mesh installations to version 1.0.0-alpha.32 or later to remediate this vulnerability. Network-level protections such as restricting access to DecoCMS Mesh management interfaces via firewalls or VPNs can reduce exposure. Implement strict access control policies and audit logs to detect unauthorized attempts to manipulate domain-related functions. Conduct thorough code reviews and penetration testing focusing on access control enforcement in API endpoints, especially those handling domain or team parameters. Employ runtime application self-protection (RASP) or web application firewalls (WAF) configured to detect anomalous API calls targeting the createTool function or similar endpoints. Regularly monitor threat intelligence feeds for updates on exploitation attempts or new patches. Finally, ensure that all development and deployment teams are aware of secure coding practices to prevent similar access control issues in future releases.