Nessus vs Ghidra vs Wapiti vs Skipfish: Which Debates tool is Best in 2025?

Nessus is a leading vulnerability assessment tool developed by Tenable, Inc., widely recognized as the industry’s most trusted scanner for identifying security weaknesses across networks, devices, applications, and cloud environments. Launched in 1998 as an open-source project by Renaud Deraison, it transitioned to a proprietary model in 2005 and now offers two enterprise versions: Nessus Professional and Nessus Expert. With over 252,000 plugins and 100,000 plus CVEs, Nessus delivers high-accuracy scans to detect vulnerabilities, misconfigurations, and compliance issues. It supports unlimited IT assessments, customizable templates (450+), and vulnerability prioritization using CVSS v4, EPSS, and Tenable’s VPR. Nessus Expert extends capabilities to web application scanning, external attack surface monitoring, and cloud infrastructure audits.

Ghidra, an open-source software reverse engineering (SRE) framework, developed by the National Security Agency (NSA) Research Directorate, is pre-installed on Kali Linux at /usr/bin/ghidra. Ghidra provides a comprehensive suite of tools for analyzing compiled code across platforms like Windows, macOS, and Linux. Supporting disassembly, decompilation, graphing, and scripting, it’s a powerful tool for malware analysis, vulnerability research, and ethical hacking. With a Java-based GUI and extensible plugin architecture, Ghidra rivals commercial tools like IDA Pro, making it a go-to solution for cybersecurity professionals and forensic analysts.

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.

Skipfish is an open-source web application security reconnaissance tool pre-installed in Kali Linux, designed for automated penetration testing and vulnerability scanning. Developed by Google and maintained on GitHub, it performs recursive crawls and dictionary-based probes to create an interactive sitemap of a target website, annotating it with results from non-disruptive security checks. With a lightweight 559 KB footprint, Skipfish achieves high performance (500+ requests/second on internet targets, 2000+ on LAN), detecting vulnerabilities like XSS, SQL injection, and directory traversal in CMS platforms like WordPress and Joomla. Its 15+ modules, including metagoofil and wananga, support comprehensive scans, while features like form authentication, custom headers, and heuristic wordlist generation enhance flexibility. Skipfish generates detailed HTML reports for professional security assessments, making it ideal for ethical hackers, penetration testers, and webmasters.