SecuProbe is an advanced Web Application Firewall (WAF) designed to protect web applications from common and critical cyberattacks, including SQL Injection (SQLI), NoSQL Injection, and Cross-Site Scripting (XSS). This paper discusses the design and implementation of SecuProbe, focusing on its real-time detection capabilities and advanced security features. The system uses a hybrid detection approach, combining signature-based and anomaly detection techniques. Signature-based detection matches incoming requests against known attack patterns, while anomaly detection identifies suspicious behaviors that deviate from normal traffic. This dual-layered detection method improves accuracy and allows the identification of both known and emerging threats. SecuProbe integrates automated attack categorization, enabling the system to classify detected threats into specific categories for better analysis and response. It also features an email alerting mechanism that notifies administrators of potential security breaches, ensuring prompt action against identified vulnerabilities. It is capable of handling high volumes of concurrent requests while maintaining low latency and high throughput, ensuring minimal impact on web application performance. This makes it suitable for both small-scale applications and large, complex infrastructures. The system has been extensively tested and evaluated to ensure accuracy, reliability, and efficiency.