Open Source PHP Web Application Firewalls (WAF)

CacheGuard Gateway is a simple internet security solution for startups, small businesses and SMEs that need strong protection without complexity. A free, open-source Unified Threat Management (UTM) platform for quick deployment and easy management. Download CacheGuard-OS and install on bare-metal or a virtual machine. In minutes, you get a complete security gateway protecting your network at no cost. Includes firewall, web antivirus, VPN, URL filtering, and SSL-inspecting web proxy in one UTM stack. A built-in Web Application Firewall (WAF) works with reverse proxy, load balancer and SSL offloader to block malicious requests and low-reputation IP traffic. Quality of Service (QoS) prioritises critical traffic, balances multiple WAN links and caches web content to optimise performance.

NinjaFirewall (Pro Edition) is a powerful Web Application Firewall designed to protect all PHP softwares, from custom scripts to popular shopping cart softwares and CMS applications. Some of its features are: * Powerful filtering engine. * Stand alone Web Application Firewall. * Protects against remote & local file inclusions, code execution, uploads, SQL injections, bots and scanners, XSS and many other threats. * Hooks and sanitises all HTTP requests before they reach your website, as well as the response body. * Real-time detection (File Guard). * Response body filter (Web Filter). * Powerful access control and firewall policies. * Easy to setup; your PHP scripts do not require modifications. * Works with any PHP applications, even those encoded with ionCube and ZendGuard. * Management administration console. * One-click updates. * Centralized logging. * And many more...

This package intends to protect your Laravel app from different type of attacks such as XSS, SQLi, RFI, LFI, User Agent, and a lot more. It will also block repeated attacks and send notifications via email and/or slack when an attack is detected. Furthermore, it will log failed logins and block the IP after a number of attempts. Some middleware classes (i.e. Xss) are empty as the Middleware abstract class that they extend does all of the job, dynamically. In short, they all work.