2 Videos for postMessage() II

In this video, we cover the PentesterLab exercise on PostMessage named postMessage II. This exercise demonstrates how to securely communicate between two windows using JavaScript functions, particularly stressing the importance of verifying the origin of events to prevent malicious attacks.

In this video, we delve into the exploitation of the `postMessage` function, focusing on the second exercise from PentesterLab. We demonstrate how to share secrets and exploit a vulnerability to access sensitive information without user interaction.