Budibase Critical Privilege Escalation & IDOR via Missing RBAC on User Role Management (Creator-Role)

Budibase is a low code platform for creating internal tools, workflows, and admin panels. This issue is a combination of Vertical Privilege Escalation and IDOR (Insecure Direct Object Reference) due to missing server-side RBAC checks in the /api/global/users endpoints. A Creator-level user, who should have no permissions to manage users or organizational roles, can instead promote an App Viewer to Tenant Admin, demote a Tenant Admin to App Viewer, or modify the Owner’s account details and all orders (e.g., change name). This is because the API accepts these actions without validating the requesting role, a Creator can replay Owner-only requests using their own session tokens. This leads to full tenant compromise.

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授权机制缺失

Budibase 安全漏洞

Budibase是英国Budibase开源的一个用于在几分钟内创建内部应用程序、工作流和管理面板的低代码平台。 Budibase存在安全漏洞，该漏洞源于/api/global/users端点缺少服务器端RBAC检查，可能导致垂直权限提升和不安全的直接对象引用攻击，进而导致租户完全被破解。

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