What potential security risks are associated with not properly handling context switches in PHP?

Improper handling of context switches in PHP can lead to security risks such as data leakage, unauthorized access to sensitive information, and potential injection attacks. To mitigate these risks, it is crucial to properly sanitize input data, validate user permissions, and securely manage session data during context switches. 

// Example of securely handling context switches in PHP

// Sanitize input data
$user_id = filter_input(INPUT_GET, 'user_id', FILTER_SANITIZE_NUMBER_INT);

// Validate user permissions
if (check_user_permissions($user_id)) {
    // Perform context switch
    switch_user_context($user_id);
} else {
    // Redirect or display an error message
    header("Location: error.php");
    exit();
}

Keywords

security risks context switches PHP vulnerability data leakage

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