Bkpf23web18.part4.rar -

The final processing scripts or the specific endpoint where the flag is hidden.

Look for the secret_key in the configuration files found in the archive. BKPF23WEB18.part4.rar

You might see a check like if (req.body.user === 'admin') , which can be bypassed if user is passed as an array ['guest', 'admin'] . 🛠️ Exploitation Steps Step 1: Analyze the Authentication The final processing scripts or the specific endpoint

Once you have bypassed the local checks discovered in the part4 files: Intercept the request using . BKPF23WEB18.part4.rar

The part4 source reveals that the application checks for a specific or a Session Cookie .