Understanding SQL Injection and How to Prevent It
SQL Injection is a web security vulnerability that can have devastating effects on users' databases and applications. It happens when an attacker manipulates a standard SQL query by inserting or "injecting" malicious SQL code into the input data from the client to the application. This can result in unauthorized access to sensitive data, destruction of data, and potentially, taking control of the database server. How SQL Injection Works The vulnerability arises primarily due to improperly sanitized input fields. For instance, consider a simple login form that takes a username and password. The backend code might construct an SQL query with these inputs to check the database for a matching record. An attacker can exploit this by entering SQL code into the input field. If the application doesn't adequately sanitize this input, the malicious code can be executed on the database server, leading to unauthorized data access or other malicious activities. Preventing SQL Inje...
