JSON Injection

A security vulnerability where malicious JSON data is inserted into web applications.

Understanding:

JSON Injection is a web application vulnerability where malicious JSON input is injected into APIs or web applications to manipulate data or execute code.

Common Applications and Use Cases:

Exploiting Weak API Validations – Injecting malicious JSON payloads.
Modifying Client-Side JSON Data – Altering application behavior.
Executing Cross-Site Scripting (XSS) Attacks – Embedding harmful scripts.

Best Practices and Security Considerations:

Sanitize and Validate JSON Inputs – Blocks malicious payloads.
Use Parameterized Queries in APIs – Prevents injection attacks.
Implement Web Application Firewalls (WAFs) – Detects and blocks JSON-based threats.