@ammighorbani @jusxing Yes, If an app doesn’t verify the origin of postMessage requests, attackers can send malicious messages from any origin! This could lead to data theft or functionality abuse based on application business logic
In today's web environment, the postMessage API enables cross-origin communication but can also introduce vulnerabilities if misconfigured. Let's explore how bug bounty hunters can hunt for these issues. #BugBounty#WebSecurity#postMessage