Command Injection in Symfony: How to Detect & Prevent It
Command injection is one of the most dangerous web application vulnerabilities today. If left unchecked, it allows attackers to execute arbitrary system commands on your server — putting your application, data, and users at risk. In this post, we’ll explore how command injection works in Symfony applications, provide real code examples, and show you how to identify these vulnerabilities using our Website Vulnerability Scanner online free . You’ll also learn how to harden your Symfony application against this threat, while accessing professional-grade tools and services to protect your infrastructure. 🚨 What is Command Injection? Command injection occurs when user input is improperly handled in a way that allows execution of system-level commands. In Symfony, this often happens when unsafe data is passed directly to functions like: shell_exec() exec() system() passthru() or even through third-party processes invoked from controllers. An attacker can exploit this b...