CVE-2026-108632 in JeecgBoot
Summary
by MITRE • 10/11/2026
JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysDepartPermissionController queryById handler that allows any authenticated user to read department permission records. Low-privileged attackers can request GET /sys/sysDepartPermission/queryById with arbitrary ids to retrieve depart_id, permission_id and data_rule_ids for any department.
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Analysis
by VulDB Data Team • 10/11/2026
The vulnerability identified in JeecgBoot versions up to 3.9.5 represents a critical failure in access control mechanisms within the application's administrative module. Specifically, the flaw resides in the SysDepartPermissionController class, which is responsible for managing permissions associated with organizational departments. The core issue lies in the queryById handler method, which processes HTTP GET requests directed at the /sys/sysDepartPermission/queryById endpoint. This endpoint is designed to retrieve specific permission records based on an identifier provided by the client. However, the implementation fails to verify whether the authenticated user initiating the request possesses the necessary privileges or belongs to a role authorized to access the requested department's data. Consequently, the application operates under an implicit trust assumption that any valid session token grants broad read access to all administrative configuration data, regardless of the specific scope assigned to that user account.
From a technical perspective, this is a classic example of insecure direct object reference combined with broken access control. The system accepts arbitrary identifiers for department IDs without performing sufficient authorization checks against the current user's role or permission set. An attacker who has obtained valid credentials through phishing, credential stuffing, or other means can exploit this logic flaw by crafting requests that specify different depart_id values in the query parameters. Since there is no server-side validation to ensure that the requesting entity owns or manages the department associated with the queried ID, the application returns sensitive configuration details for any department within the system hierarchy. This lack of object-level authorization allows low-privileged users to bypass intended restrictions and access data reserved for higher-ranking administrators or security officers.
The operational impact of this vulnerability is significant due to the nature of the exposed information. The retrieved records contain depart_id, permission_id, and crucially, data_rule_ids. Data rules typically define granular access controls that dictate which rows or columns a user can view within database tables based on their role or department affiliation. By extracting these identifiers, an attacker gains deep insight into the application's security architecture and internal logic. This intelligence can be leveraged to map out the entire permission structure of the organization using this software platform. Furthermore, knowledge of specific data rule IDs may facilitate further attacks aimed at bypassing row-level security filters or manipulating query results in subsequent interactions with other endpoints that rely on these rules for filtering sensitive information.
This vulnerability aligns closely with Common Weakness Enumeration CWE-284, which describes Improper Access Control where a user is able to access resources they are not authorized to view. Additionally, it maps directly to the MITRE ATT&CK framework technique T1078, specifically Valid Accounts and potentially T1530 Data from Information Repositories if used in conjunction with other data exfiltration methods. The ability of low-privileged users to enumerate administrative configurations effectively reduces the security boundary of the application, allowing attackers to perform reconnaissance that would otherwise require elevated privileges. This undermines the principle of least privilege and compromises the integrity of the access control model implemented by JeecgBoot administrators.
To mitigate this vulnerability, immediate action is required for all systems running JeecgBoot versions prior to 3.9.6 or any patched release issued after its discovery. Administrators should upgrade their software environment to a version that includes fixes for this authorization bypass. In the interim, if upgrading is not immediately feasible, network-level controls such as Web Application Firewalls can be configured to monitor and restrict access patterns to the /sys/sysDepartPermission/queryById endpoint, although this is less effective than patching the underlying code logic. Developers must also review other endpoints within the SysDepartPermissionController class for similar authorization flaws, ensuring that every method performing data retrieval or modification includes robust checks verifying user roles against resource ownership before processing requests. Regular security audits and penetration testing focusing on horizontal privilege escalation scenarios are recommended to identify any remaining gaps in access control implementation across the application suite.