Eloquent and the Query Builder use PDO parameter binding for values supplied through their normal APIs, which prevents user input from changing the SQL structure. Raw SQL should use bindings, and user-controlled column names or sort directions must come from a strict allowlist because identifiers cannot be parameter-bound.

Blade escapes normal {{ }} output as HTML, helping prevent stored and reflected XSS when user content is displayed. Raw {!! !!} output must be limited to trusted or sanitized HTML. These framework protections complement, rather than replace, request validation, authorization, output-context awareness, security headers, dependency updates, and careful review of custom JavaScript.