Executive Summary

CVE-2026-2078 is an improper authorization vulnerability in the yeqifu warehouse application, specifically in the Permission Management component within the PermissionController.java file. The functions addPermission, updatePermission, and deletePermission do not perform proper authorization checks, allowing any authenticated user, regardless of their privilege level, to create, modify, or delete permissions.

This means that a low-privileged user can manipulate the permission system by adding new permissions, updating existing ones, or deleting permissions without proper rights. This flaw enables attackers to corrupt the authorization system and perform stealthy privilege escalation.

Useful 0 Not Useful 0

Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability can be detected by monitoring unauthorized or suspicious requests to the permission management endpoints of the yeqifu warehouse application, specifically the addPermission, updatePermission, and deletePermission endpoints.'}, {'type': 'paragraph', 'content': 'Since the flaw allows any authenticated user to manipulate permissions without proper authorization, detection can involve checking for POST requests to these endpoints from users who should not have such privileges.'}, {'type': 'paragraph', 'content': 'Suggested commands to detect exploitation attempts include using network traffic inspection tools like curl or monitoring logs for POST requests to the following URLs:'}, {'type': 'list_item', 'content': 'POST /permission/addPermission'}, {'type': 'list_item', 'content': 'POST /permission/updatePermission'}, {'type': 'list_item', 'content': 'POST /permission/deletePermission'}, {'type': 'paragraph', 'content': 'Example curl command to test if unauthorized permission deletion is possible (replace URL and permission ID accordingly):'}, {'type': 'list_item', 'content': 'curl -X POST https://yourserver/permission/deletePermission -d \'{"id": "<permission_id>"}\' -H \'Content-Type: application/json\' -b \'auth_cookie_or_token\''}, {'type': 'paragraph', 'content': 'Monitoring logs for such requests from low-privileged users or unexpected sources can help detect exploitation attempts.'}] [1]

Useful 0 Not Useful 0

Mitigation Strategies

Immediate mitigation steps include restricting access to the affected permission management endpoints (addPermission, updatePermission, deletePermission) to only highly privileged and authorized users.

Since the vulnerability arises from missing authorization checks, implementing proper authorization validation before allowing any permission modifications is critical.

If patching is not immediately possible, consider the following steps:

• Restrict network access to the permission management endpoints using firewall rules or API gateway policies.
• Monitor and audit all requests to these endpoints for suspicious activity.
• Temporarily disable or remove the affected endpoints if feasible.

Additionally, consider replacing the affected component with an alternative product if no timely fix is available, as the project has not yet responded to the issue.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability can have serious impacts because unauthorized users can manipulate the permission system remotely. By adding, modifying, or deleting permissions, attackers can escalate their privileges stealthily.

Such unauthorized changes can compromise the confidentiality, integrity, and availability of the system, potentially allowing attackers to gain access to sensitive data, disrupt services, or take control of the application.

Useful 0 Not Useful 0

Compliance Impact

I don't know

Useful 0 Not Useful 0