XSS Attack Through Incorrectly Configured CORS

The article discusses a complex attack methodology that combines CORS (Cross-Origin Resource Sharing) and XSS (Cross-Site Scripting) to steal sensitive data. The author explains how understanding the mechanisms behind CORS and XSS arms attackers with potent techniques. CORS allows for resource sharing between different domains, but improper configuration can lead to serious security vulnerabilities. The piece illustrates a scenario where an attacker leverages CORS to gain access to data from another domain through XSS. By grasping this process, we can better protect our applications and respond more effectively to potential threats. The author concludes with tips on reducing risk, emphasizing the need for good coding practices and proper application configuration.