# SQL Injection SQL injection is a type of cyber attack that targets the security vulnerabilities present in web applications. It occurs when malicious SQL (Structured Query Language) code is inserted into input fields or parameters, allowing attackers to manipulate the SQL queries executed by the application's database. This exploitation can lead to unauthorized access to sensitive data, unauthorized manipulation of data, or even the complete takeover of the affected system. By injecting malicious SQL commands, attackers can bypass authentication, extract data, modify databases, or execute administrative operations. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://hackingdoc.gitbook.io/web-hacking/sql-injection.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.