CVE-2026-111355 in Admin.Core
Summary
by MITRE • 10/16/2026
zhontai Admin.Core through 10.1.0 contains an authorization bypass vulnerability that allows authenticated users to ignore department DataScope restrictions by supplying out-of-scope record ids. Attackers holding user or organization module permissions with Dept or Self scope can call UserService and OrgService by-id methods to read, modify, disable, and delete users in other departments.
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Analysis
by VulDB Data Team • 10/16/2026
The vulnerability identified within zhontai Admin.Core versions up to 10.1.0 represents a critical failure in server-side access control mechanisms, specifically targeting the enforcement of data scope restrictions intended for authenticated users. This flaw is classified under CWE-284 Improper Access Control and aligns with MITRE ATT&CK technique T1078 Valid Accounts, as it exploits legitimate credentials to perform unauthorized actions. The core issue lies in the application's inability to properly validate whether a user has permission to access specific data records based on their assigned organizational scope when interacting with backend services.
In a typical enterprise deployment of zhontai Admin.Core, administrators and users are assigned permissions that include departmental or self-referential scopes. These scopes are designed to restrict visibility and editability to only those resources belonging to the user's own department or themselves. However, the UserService and OrgService endpoints contain an authorization bypass flaw where the backend logic fails to cross-reference the requested resource identifier against the authenticated user's actual data scope constraints. By supplying out-of-scope record identifiers in API requests, attackers can circumvent these logical restrictions entirely.
The operational impact of this vulnerability is severe due to its potential for widespread data compromise and administrative disruption. An attacker possessing basic user or organization module permissions with a Dept or Self scope can exploit the by-id methods within UserService and OrgService. This allows them not only to read sensitive personal information belonging to users in other departments but also to modify, disable, or delete these accounts. Such actions can lead to significant data integrity issues, unauthorized access to confidential organizational data, and potential denial of service for affected employees whose accounts are disabled or deleted maliciously.
Mitigation strategies must focus on enforcing strict server-side validation at the point of resource access rather than relying solely on client-side controls or implicit trust in request parameters. Developers should implement robust authorization checks that verify the authenticated user's scope against the ownership attributes of every requested record before processing any read, update, delete, or disable operations. Additionally, applying principle of least privilege to service accounts and auditing API endpoints for similar logical flaws across other modules is recommended. Upgrading to a patched version where this logic error has been corrected by zhontai is the primary remediation path until custom patches can be developed and deployed internally.