Web application penetration testing
Web application penetration testing
Web application penetration testing investigates a running application for the flaws that actually lead to compromise: broken access control, injection, and the business-logic issues that automated scanners consistently miss. Impactr runs this style of investigation continuously, testing across authenticated roles the way an attacker who has an account would.
What it covers
The OWASP Top 10 is the standard reference point - injection (SQL, command, template), broken access control, cross-site scripting, security misconfiguration, and the authentication and session flaws that let an attacker escalate a single foothold into full compromise.
Where scanners fall short
A scanner can flag a reflected parameter or a missing header, but it can't tell you that a low-privilege user can reach an admin-only endpoint by changing a role ID - that requires investigating the application across accounts and roles, not just its HTTP responses.
Testing across the stack
The specific pitfalls vary by framework and language - deserialization risk in Java, template injection in Python and Node.js templating engines, prototype pollution in JavaScript. Impactr adapts its investigation to what the application is actually built with.
What Impactr does here
- Tests across every authenticated role, not just the anonymous surface
- Chains access-control and injection findings into full attack paths
- Covers the OWASP Top 10 and the business-logic issues it doesn't name
- Evidence-backed findings: request, response, and a working proof of concept
See it work on your own application - Impactr investigates, chains, and proves impact with reproducible evidence.
Join the waitlistFAQ
Does web application penetration testing cover single-page apps and JavaScript frameworks?
Yes - Impactr tests the application's behavior over HTTP regardless of what renders the frontend, and separately covers framework-specific risks like DOM XSS and prototype pollution where they're relevant.
How is this different from API penetration testing?
They overlap heavily, but web application testing typically covers session-based, browser-facing flows (rendered pages, forms, cookies) while API testing focuses on REST/GraphQL contracts consumed by other services or clients. See our dedicated API penetration testing page for that angle.
Do we need a staging environment, or can this run against production?
Either. Impactr is read-only by default and scoped to what you authorize; many teams start on staging and expand scope to production once they're comfortable with how it behaves.