What are some common security vulnerabilities in PHP websites that can lead to malicious software injection?

One common security vulnerability in PHP websites is SQL injection, where attackers can inject malicious SQL queries into input fields to manipulate the database. To prevent this, developers should use prepared statements with parameterized queries to sanitize user input and prevent SQL injection attacks. 

// 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 File inclusion vulnerability CSRF (Cross-Site Request Forgery)

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