Finding and exploiting an unused API endpoint

📰 Medium · Cybersecurity

Learn how to find and exploit unused API endpoints to gain unauthorized access, and understand the importance of securing APIs

intermediate Published 3 Jun 2026

Action Steps

Use tools like Burp Suite or ZAP to scan for unused API endpoints
Analyze API responses to identify potential vulnerabilities
Test and exploit the vulnerability using tools like curl or Postman
Implement proper security measures, such as authentication and authorization, to prevent unauthorized access
Monitor API traffic and responses to detect and respond to potential exploits

Who Needs to Know This

Security teams and developers can benefit from this knowledge to identify and secure vulnerable API endpoints, preventing potential exploits

Key Insight

💡 Unused API endpoints can be a major security risk if not properly secured, allowing attackers to gain unauthorized access

Key Takeaways

Learn how to find and exploit unused API endpoints to gain unauthorized access, and understand the importance of securing APIs

Full Article

Title: Finding and exploiting an unused API endpoint

URL Source: https://medium.com/@cybernerddd/finding-and-exploiting-an-unused-api-endpoint-baacb49ebd02?source=rss------cybersecurity-5

Published Time: 2026-06-03T03:27:35Z

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# Finding and exploiting an unused API endpoint

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Jun 3, 2026

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## Overview

Exploited a hidden API endpoint to set the price of the Lightweight l33t Leather Jacket to **$0**and purchase it for _FREEEE_!!!.

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![Image 3](https://miro.medium.com/v2/resize:fit:700/1*6gwU5rdMYUewB0qm6GXmpg.png)

Not secure if it can be used

## Recon

The application uses an api endpoint that fetches the price of products and return its price as response to users.

**Request:**

GET /api/products/1/price
**Response:**

HTTP/2 200 OK

Content-Type: application/json; charset=utf-8

X-Frame-Options: SAMEORIGIN

Content-Length: 88

{"price":"$1337.00"

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Finding and exploiting an unused API endpoint

Key Takeaways

Full Article

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