Wapiti vs Nessus Essentials vs OpenVAS: Which Vulnerability Scanners tool is Best in 2025?

Wapiti, pre-installed in Kali Linux, is an open-source web application vulnerability scanner designed for black-box security testing of web applications. Written in Python, it crawls websites to identify scripts and forms, injecting payloads to detect vulnerabilities such as SQL injection, cross-site scripting (XSS), file disclosure, command execution, XML external entity (XXE) injection, CRLF injection, and server-side request forgery (SSRF). Wapiti leverages a Nikto database to search for dangerous files and supports authentication, proxies, Tor, and customizable scan scopes (e.g., page, folder, domain). Its lightweight 1.54 MB footprint and modular design make it ideal for penetration testers and security auditors.

Nessus Essentials is a free vulnerability scanning tool from Tenable, Inc., designed for students, educators, and small-scale users to perform high-speed, in-depth vulnerability assessments on up to 16 IP addresses per scanner. Part of the renowned Nessus family, it leverages Tenable’s extensive plugin database (over 252,000 plugins) to identify security weaknesses, software flaws, and misconfigurations across networks, devices, and applications. Introduced as a rebranded Nessus Home in 2019, it’s ideal for personal home networks, educational purposes, or small businesses starting in cybersecurity. Nessus Essentials runs on Windows, Linux, macOS, and platforms like Raspberry Pi, offering a web-based interface and NASL scripting for custom plugins.

Protect your online assets with OpenVAS, a free website vulnerability scanner. Use it as a web scanner, wifi scanner, or website scanner to secure your site and network, ensuring its security in 2025.