Tenable One Web App Scanning is a commercial dynamic application security testing solution by Tenable. xssValidator is a free dynamic application security testing solution. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Teams already using Tenable for vulnerability scanning
It belongs here because it adds web app testing to the Tenable products many teams already use for vulnerability scanning, so web findings sit next to the rest. It fits teams of any size already on Tenable One or Security Center. Its listed integrations are all Tenable products, so if you want a scan on every release, ask how it connects to your CI/CD pipeline and ticketing.
From Best DAST Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
DAST solution for web apps and APIs with automated scanning capabilities
A Burp Suite extension that automates XSS vulnerability detection and validation through custom payload generation and response analysis.
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Based on what each listing shows: deployment, company size, price and open source.
Tenable One Web App Scanning fits if you need both cloud and on-premises options.
xssValidator fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.
Common questions when comparing Tenable One Web App Scanning vs xssValidator for dynamic application security testing.
Tenable One Web App Scanning: DAST solution for web apps and APIs with automated scanning capabilities, built by Tenable.
xssValidator: A Burp Suite extension that automates XSS vulnerability detection and validation through custom payload generation and response analysis.
The table above shows where their features, integrations, deployment and company size fit differ.
Tenable One Web App Scanning is made by Tenable. xssValidator is open-source with 416 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Tenable One Web App Scanning and xssValidator are both Dynamic Application Security Testing products. Key differences: Tenable One Web App Scanning is Commercial while xssValidator is Free, xssValidator is open-source. Use the table above to see where features, deployment and company size fit differ.
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