Are there any security risks associated with automatically creating subdomains in PHP?

Automatically creating subdomains in PHP can pose security risks if not properly sanitized. This can potentially lead to subdomain takeover attacks or unauthorized access to sensitive information. To mitigate these risks, it is important to validate and sanitize user input before using it to dynamically create subdomains. 

// Validate and sanitize user input before creating subdomain
$subdomain = filter_var($_POST['subdomain'], FILTER_SANITIZE_STRING);

// Create subdomain
$domain = "example.com";
$fullSubdomain = $subdomain . '.' . $domain;

Keywords

subdomains PHP security risks automatic creation vulnerabilities

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