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Medium Risk
Wiki Entry

Permissive CORS Configuration

Your site allows requests from any origin (Access-Control-Allow-Origin: *). This is too permissive and can expose your API to unauthorized access.

Why This Matters

With a wildcard CORS policy, any website can make requests to your API. This can lead to data theft, unauthorized actions, or abuse of your API by malicious sites.

How to Fix
Framework-specific solutions and general best practices

Configure CORS to only allow specific trusted domains. Replace 'Access-Control-Allow-Origin: *' with specific domains like 'Access-Control-Allow-Origin: https://yourdomain.com'.

Quick Reference
Severity
Medium Risk
ID
cors_misconfigured
AI Assistant Prompt

Copy this prompt to ask an AI for help fixing this vulnerability:

Please fix the "Permissive CORS Configuration" security vulnerability in this web application.

The issue is: Your site allows requests from any origin (Access-Control-Allow-Origin: *). This is too permissive and can expose your API to unauthorized access.

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