What are some common security risks associated with poorly coded PHP scripts like the one mentioned in the forum thread?

One common security risk associated with poorly coded PHP scripts is SQL injection. This occurs when user input is not properly sanitized before being used in database queries, allowing malicious users to manipulate the query to access or modify data. To prevent SQL injection, developers should use prepared statements or parameterized queries to safely handle user input. 

// Example of using prepared statements to prevent SQL injection
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $username);
$stmt->execute();

Keywords

SQL injection Cross-site scripting (XSS) Remote code execution Insecure file uploads Insufficient input validation

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