Moanshop.7z -

Once the attacker can "pollute" the global object, they target specific application behaviors to gain control:

Leftover API keys or developer credentials.

The .7z file contains the application's backend logic, often written in or Python (Flask/Django) . By analyzing the code, researchers look for: moanshop.7z

Identifies a vulnerable merge function in the cart.js or admin.js file.

Injecting an isAdmin: true property into the prototype so that every user session is treated as an administrator. Once the attacker can "pollute" the global object,

In this challenge, participants are presented with a compressed archive ( .7z ) containing the source code for a fictional online storefront called "Moan Shop." The objective is to identify and exploit vulnerabilities within the application to retrieve a hidden "flag"—a specific string of text that proves the system was successfully breached.

While the exact details can vary depending on the specific competition (e.g., SECCON, HTB, or private bug bounty simulations), the typical write-up for this challenge focuses on three main stages: Injecting an isAdmin: true property into the prototype

Issues in how the "shopping cart" or "payment" logic handles quantities or prices. 2. The Critical Flaw: Prototype Pollution