app.listen(port, () => console.log(`Server running on port $port`));

Upon entering the challenge, the application claims to use "military-grade 128-bit AES encryption" and asserts that keys are never stored in the database.

: To get all the flags, you often have to decrypt a token, modify it using bit-flipping, and then re-encrypt it to perform a SQL injection. Are you stuck on a specific flag or just starting out with the Padding Oracle CTF — Hacker101 — Encrypted Pastebin | by Ravid Mazon

Often involves using the oracle to encrypt a custom string (Bit-Flipping or further Oracle manipulation) to gain unauthorized access to a protected page or administrative function. Summary of Flags Description Flag 0 Initial Access Exploit the Padding Oracle to decrypt a standard post. Flag 1 Admin/Hidden Data

Stay safe, and keep your data encrypted.

To align with Hacker101's operational security standards, you need to:

Do not paste raw HTML into a standard pastebin. Many pastebins execute JavaScript on the viewer side. If you paste a DOM-based XSS payload raw, the pastebin itself might execute it in your browser, stealing your session token for the bug bounty platform.