漏洞概述 受影响版本: Invoice System in Laravel: 1.0 漏洞类型: IDOR + Cross-Tenant Data Exposure 严重程度: CRITICAL 状态: Unpatched 漏洞端点: (GET/PUT methods) 漏洞描述: Invoice records are accessed by raw ID without validating that the record belongs to the requesting company (tenant). While the index view is scoped, direct access to a specific invoice allows an attacker to view or edit invoices from any other company in the system. 影响范围 机密性: 暴露属于其他公司的敏感账单和财务数据。 完整性: 未经授权修改发票、金额和状态。 业务风险: 跨平台泄露客户列表和交易历史。 修复方案 1. Scope Queries: Always include a tenant check in queries: 2. Use Policies: Apply Laravel Policies to every read/write action on the Invoice model. 3. Route Model Binding: Use scoped bindings to automatically enforce tenant isolation. 概念验证 (PoC) 解释: The attack relies on direct enumeration: By providing an invoice ID belonging to another company, the attacker bypasses tenant isolation because the controller lacks a check.