What potential security risks should be considered when accessing a web space using PHP?

One potential security risk when accessing a web space using PHP is SQL injection. This occurs when user input is not properly sanitized before being used in a SQL query, allowing malicious users to manipulate the query. To prevent SQL injection, use prepared statements or parameterized queries to securely interact with the database. 

// Using prepared statements to prevent SQL injection
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->execute(['username' => $username]);
$result = $stmt->fetch();

Keywords

SQL injection Cross-site scripting (XSS) CSRF attacks File inclusion vulnerabilities Session hijacking

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