WSTG-Based Vulnerability Assessment

Comprehensive web application security assessment following OWASP WSTG methodology

About This Service

Our WSTG-Based Vulnerability Assessment tests a web application against the OWASP Web Security Testing Guide (WSTG) — the industry's reference method — working chapter by chapter rather than firing a scanner and forwarding its output. We cover the WSTG categories: information gathering, configuration and deployment, identity and authentication, authorization, session management, input validation (injection and cross-site scripting), error handling, weak cryptography, business logic, and client-side testing. Every finding is manually verified with a reproducible proof and rated with CVSS and OWASP Top 10 context, so you can act on real risk rather than scanner noise.

What's Included

Information gathering and reconnaissance

Configuration and deployment management testing

Identity management testing (registration, provisioning, enumeration)

Authentication testing (credentials, lockout, password reset, MFA)

Authorization testing (privilege escalation, IDOR, path traversal)

Session management testing (tokens, fixation, timeout, CSRF)

Input validation: injection (SQL, command), cross-site scripting, and more

Error handling and information leakage testing

Weak cryptography and sensitive data handling review

Business logic testing

Client-side testing (DOM XSS, CORS, postMessage, clickjacking)

How It Works

1
Scoping & Information Gathering
We agree the scope and success criteria, then map the application: technologies, entry points, roles, and how data moves through it. Good reconnaissance is what makes the rest of the WSTG testing efficient and complete.
2
Systematic WSTG Testing
We work through the WSTG categories in order — authentication, authorization, session management, input validation, business logic, and the rest — combining automated tooling for coverage with the manual testing that finds access-control and logic flaws a scanner cannot.
3
Validation & Impact Analysis
Every candidate finding is manually verified with a reproducible proof, so what you receive is confirmed, not a raw scanner list. We rate severity with CVSS and the real business impact.
4
Reporting
You receive a report structured to the WSTG, with an executive summary for decision-makers and a detailed technical section — each finding with its proof, severity, and step-by-step remediation.
5
Re-testing
After you remediate, we re-test the findings to confirm the fixes hold and did not open anything new, and update their status in the report.
Deliverables
  • Executive summary with a risk overview for decision-makers
  • Detailed technical report structured to the WSTG
  • Each finding with a reproducible proof of concept
  • CVSS severity and OWASP Top 10 mapping for every finding
  • Prioritized remediation roadmap with step-by-step guidance
  • Coverage mapping to the WSTG categories tested
  • Re-testing after remediation

Why HafezSecure

WSTG Methodology
Testing structured to the OWASP WSTG, so coverage of each category is explicit and checkable in the report rather than assumed.
Validated Findings
Every finding is manually verified with a reproducible proof, so false positives are removed before the report reaches you.
Manual Depth, Not Just Scans
The access-control, business-logic, and client-side flaws that scanners miss are exactly where the manual WSTG testing focuses.
Actionable, Prioritized Reports
Clear findings prioritized by risk, each with a proof and step-by-step remediation both engineers and management can act on.

Frequently Asked Questions

What is a WSTG-Based Vulnerability Assessment?

It is a web application security test that follows the OWASP Web Security Testing Guide, working through its categories systematically to identify and manually validate vulnerabilities, rather than relying on an automated scan alone.

What is the difference between a vulnerability assessment and a penetration test?

A vulnerability assessment aims for breadth: systematically finding and validating as many real weaknesses as possible across the WSTG categories. A penetration test goes for depth: chaining findings and pivoting to demonstrate how far an attacker could get toward a specific goal. This service is the assessment; if you need the attack narrative and exploitation chaining as well, we offer a combined assessment-and-penetration-test engagement.

How is this different from running an automated scanner?

A scanner is good at breadth on known signatures but blind to authorization flaws, business-logic abuse, and chained issues, and it produces false positives. We use tooling for coverage, then test manually for the classes a scanner cannot judge, and we verify every finding by hand before reporting it.

What do you need from us to start?

The application URL and environment, and test accounts for each role (at least two users per role, so we can test cross-user access). Access to documentation or source enables a deeper grey- or white-box test. We agree the scope and any areas to avoid before we begin.

Do you test on production, and is it safe?

We prefer a staging environment that mirrors production. When testing must run against production, we agree limits in advance — no destructive actions, care with anything that writes or bulk-processes data, and a contact on your side to pause immediately if something looks wrong.

How is the severity of findings decided?

Each finding gets a CVSS score for a common baseline, adjusted by the real business impact in your context — what it exposes, how easily it is reached, and what an attacker gains. That is why two issues with the same CVSS can be prioritized differently.

Is re-testing after remediation included?

Yes. After you remediate, we re-test the reported findings to confirm each fix holds and did not introduce a new issue, and update their status in the report.

Which vulnerabilities does the WSTG cover?

The WSTG spans information gathering, configuration and deployment, identity and authentication, authorization, session management, input validation (injection and cross-site scripting), error handling, weak cryptography, business logic, and client-side testing — the full surface of a modern web application, which maps onto the OWASP Top 10 risk categories.

How long does a WSTG assessment take?

It depends on the application's size and complexity and the number of roles; a comprehensive assessment typically runs about two to four weeks. We give a firm estimate after scoping.

Ready to Get Started?
Contact our team to discuss your security assessment needs