What potential security risks are present in the Perl script provided for form submission, and how can they be mitigated when converting to PHP?

The Perl script provided for form submission is vulnerable to cross-site scripting (XSS) attacks and SQL injection due to lack of input validation and sanitization. To mitigate these risks when converting to PHP, input validation functions like filter_var() and htmlspecialchars() should be used to sanitize user input before processing it. 

// PHP code snippet with input validation and sanitization
$name = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
$email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);
$message = htmlspecialchars($_POST['message']);

// Now you can safely use $name, $email, and $message in your PHP code

Keywords

SQL injection cross-site scripting data validation prepared statements input sanitization

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