CVE-2026-111689 in XBoot
Summary
by MITRE • 10/16/2026
Exrick XBoot through 3.3.4 contains an authorization bypass vulnerability that allows authenticated users to read user records of any department by ignoring role data scope. Attackers can request GET /xboot/user/getByDepartmentId/{departmentId} with arbitrary department ids to retrieve usernames, real names, mobile numbers, emails and status.
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Analysis
by VulDB Data Team • 10/16/2026
The identified security flaw resides within Exrick XBoot versions up through 3.3.4, specifically affecting the user management module's endpoint for retrieving users by department identifier. This vulnerability represents a critical failure in server-side access control logic, where the application fails to validate whether the authenticated user possesses the necessary permissions or role-based data scope restrictions before processing requests intended to fetch sensitive personnel information. The core technical deficiency lies in the implementation of the getByDepartmentId/{departmentId} API endpoint, which accepts an arbitrary department identifier from the client side without performing adequate authorization checks against the requesting user's assigned roles and organizational boundaries. Consequently, any authenticated account within the system can bypass these logical controls by manipulating the path parameter to specify a target department ID that is not associated with their own role or data visibility scope.
From a technical perspective, this constitutes an Insecure Direct Object Reference (IDOR) vulnerability combined with broken access control mechanisms. The application relies on client-supplied input for critical authorization decisions rather than enforcing server-side policies based on the authenticated session's context. By sending GET requests to /xboot/user/getByDepartmentId/{departmentId} with varying department identifiers, an attacker can enumerate and extract detailed user records belonging to other departments within the organization. The data exposed includes personally identifiable information such as usernames, real names, mobile phone numbers, email addresses, and account status indicators. This level of detail facilitates further malicious activities including social engineering attacks, credential stuffing campaigns using valid contact details, or reconnaissance for more targeted exploits against high-privilege accounts identified through this enumeration process.
The operational impact of this vulnerability is significant as it undermines the principle of least privilege within multi-departmental organizational structures. It allows lateral movement and data exfiltration across departmental silos that are typically intended to be isolated from one another for privacy and security reasons. Attackers with low-level access can gain visibility into high-sensitivity groups or executive teams, potentially leading to compliance violations under regulations such as GDPR or HIPAA if protected personal health information is inadvertently included in the exposed records. Furthermore, the exposure of mobile numbers and emails expands the attack surface for phishing campaigns that may bypass traditional email security gateways by leveraging trusted internal identities.
To mitigate this vulnerability, immediate remediation should focus on implementing robust server-side authorization checks within the backend service handling user retrieval requests. Developers must ensure that every API endpoint validates the requesting user's role permissions against the requested resource before returning data. This involves verifying that the authenticated user has explicit permission to view users in the specified department ID or restricting access based on hierarchical organizational structures defined in the identity management system. Additionally, implementing strict input validation and parameterized queries can help prevent related injection issues while ensuring that only authorized entities can perform such lookups. Regular security audits and penetration testing focusing on broken object level authorization patterns are recommended to identify similar flaws across other modules within the XBoot framework. Aligning these fixes with CWE-284 for Improper Access Control and MITRE ATT&CK technique T1078 Valid Accounts will help ensure comprehensive protection against unauthorized data access.