cors-chain-automation

What problem does it solve?

Manually testing CORS misconfigurations across large sets of API endpoints is extremely time-consuming and prone to missing high-impact credential-leaking flaws that attackers can chain to other critical vulnerabilities like subdomain takeover.

Core Features & Use Cases

• Bulk CORS Variant Detection: Probes hundreds of endpoints for 8 distinct CORS misconfiguration types, automatically distinguishing exploitable credential-leaking flaws (like reflect-any-origin with credentials, null-origin trust, subdomain regex bypasses) from low-severity false positives such as wildcard ACAO without credentials.
• Automated Proof-of-Concept Generation: Creates ready-to-use browser HTML PoC files for confirmed findings to demonstrate real-world impact for reporting.
• Attack Chain Prioritization: Cross-references CORS results with subdomain takeover data to flag high-severity chained vulnerabilities where a takeoverable subdomain makes a CORS flaw critical.
• Use Case: For a penetration test with 500 API endpoints across a large organization, use this skill to quickly identify all CORS issues that allow credential theft, generate proof-of-concept files for client reports, and prioritize targets where chaining with subdomain takeover creates a critical risk.

Quick Start

Use the cors-chain-automation skill to scan your list of target API endpoints for exploitable CORS misconfigurations, generate browser proof-of-concept files for confirmed issues, and cross-reference findings with subdomain takeover results to prioritize high-risk attack chains.