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Web Application Penetration Testing — OWASP-Aligned, MITRE ATT&CK Mapped

Your web app probably passed a Burp scan. That does not mean it is safe. The exploits that breach companies are business logic bugs, broken auth flows, and IDOR chains that scanners cannot see. We test the way an attacker reads your app.

What's tested

  • OWASP Top 10 — injection (SQLi, NoSQLi, command injection), XSS (stored, reflected, DOM), SSRF, broken access control, security misconfiguration
  • Authentication & session — MFA bypass, session fixation, password reset abuse, JWT issues, OAuth flow attacks
  • Authorization — IDOR, horizontal and vertical privilege escalation, tenant isolation breaks, mass-assignment
  • Business logic — workflow tampering, race conditions, pricing manipulation, coupon abuse, state-machine bypass
  • API security — REST and GraphQL, rate limiting, schema introspection, batching attacks, field-level authz
  • Client-side — DOM XSS, prototype pollution, source-map review, sensitive data in JS bundles
  • File upload — type bypass, path traversal, malicious content, SSRF via image processing
  • Server-side template injection, deserialization, and dependency-confusion patterns

Methodology

We start with a credentialed walkthrough so we understand the intended workflows. We then test as multiple personas — unauthenticated, low-privilege user, admin, tenant boundary — and look for the cracks between. Manual exploitation, real payloads, real proof. Automated tooling (Burp Suite Pro, Nuclei, custom scripts) is used for surface coverage, but the critical findings always come from manual review of the application's actual logic.

Every finding is mapped to a MITRE ATT&CK technique so your detection team knows what to look for. CVSS scoring is paired with a business-impact rating because CVSS alone often misranks the things that actually hurt — a "medium" IDOR on the billing endpoint matters more than a "high" XSS on a public marketing page.

Deliverables

  • Executive summary (board-ready, 1-2 pages)
  • Per-finding technical write-up with reproduction steps and screenshot evidence
  • Raw HTTP / curl request samples your engineers can replay locally
  • CVSS v3.1 severity + business-impact score for every finding
  • MITRE ATT&CK technique mapping appendix
  • Prioritized remediation roadmap ranked by exploitability
  • Letter of attestation for SOC 2 CC4.1, PCI DSS 11.4, HIPAA, cyber-insurance
  • Free 60-day retest after remediation

How this differs from automated scans

Vulnerability scanners run signature checks. They are good at finding known CVEs in known software and bad at everything else. They miss IDOR because it requires understanding what "your data" means in your application. They miss business logic flaws because there is no signature for "the coupon system lets you stack codes that should be exclusive." They miss tenant isolation bypasses because they cannot model what a multi-tenant boundary should look like.

A real web application pentest is a human reading your app the way an attacker does — mapping roles, abusing tenant boundaries, breaking workflow state, and finding the path from "anonymous visitor" to "all customer data exfiltrated." That is what auditors, insurance carriers, and enterprise procurement teams require, and that is what we deliver. For the full pentest program (network, AD, wireless), see our penetration testing services. For ATT&CK-aligned detection validation, see MITRE ATT&CK assessments.

Web application pentests served from Macon, GA, with clients across Atlanta, Savannah, and nationwide. See the Active Directory pentest case study for our reporting style.

FAQs

How does this differ from an automated web vulnerability scan?

An automated scan runs signature checks and produces noise — false positives, duplicates, and low-severity findings. A web application pentest has a human chaining business logic flaws, broken auth, and IDOR into real impact. Scanners miss IDOR, race conditions, tenant-isolation bypasses, and most authorization issues. Auditors and enterprise customers require the manual kind.

Do you need source code access?

No, but it speeds things up and finds more. We run black-box (no creds), grey-box (credentialed user accounts), and white-box (source + creds) engagements. Grey-box is the sweet spot for most clients — we get test accounts at every role tier and look for what an authenticated attacker would actually find.

What's in the final deliverable?

Executive summary for leadership, per-finding technical write-up with reproduction steps, raw HTTP/curl request samples your engineers can replay, CVSS severity plus a business-impact score, MITRE ATT&CK technique mapping, and a prioritized remediation roadmap. Optional Jira / Linear / GitHub Issues import on request.

Do you cover GraphQL APIs?

Yes. GraphQL-specific issues (introspection leakage, batching attacks, query depth abuse, field-level authorization, mass assignment) are part of every API-scoped engagement. Same coverage on REST and gRPC.

Can you test pre-launch on staging?

Pre-launch testing on staging is ideal — pre-launch findings cost less to fix than post-launch ones. We coordinate with your team on test data, environment setup, and any rate limiting or WAF that needs to be disabled for testing.

Get a real web app pentest.

Call William Beltz at (770) 652-1282 or book a scoping call. Founder-led, evidence-backed, audit-ready.