Web Application Penetration Testing

Web Application Penetration Testing Services

Expert-led web application pentesting across authentication, access control, sessions, input handling, and business logic. Get validated findings, clear business impact, and practical remediation guidance.

Web App

What every web application pentest includes

  • OWASP Top 10 and ASVS coverage tailored to the application
  • Manual testing of authentication and access control
  • Testing of sessions plus input handling and business logic
  • Validated findings with reproducible evidence
  • Live findings in the Blaze Portal
  • Direct access to the researchers on your engagement
  • Developer focused remediation guidance
  • Fix validation and compliance mapping when included in scope

What is web application penetration testing?

Web application penetration testing simulates realistic attacks against a web app. Blaze tests authentication, authorization, sessions, input handling, business logic, file handling, and connected APIs.

Researchers follow real user roles and workflows, manually validate every finding, and explain its impact—work a vulnerability scan cannot do alone.

Expert-led

manual testing shaped by your application and risk

400+

organizations trust Blaze worldwide

Why Blaze

Why choose Blaze for web application penetration testing?

Get validated findings, direct access to the experts doing the work, and reporting built for remediation.

Handshake

Test the application, not a checklist

Coverage follows your roles, workflows, architecture, and attack surface—including business logic, tenancy, and access-control abuse.

Shield Warning

Evidence engineers can reproduce

Findings include reproduction steps, exploit evidence, business impact, and practical remediation guidance.

Users

Support through remediation

Talk directly with the researchers on your engagement and retest agreed fixes when included.

Framework & Methodology

Web application pentesting for compliance and beyond

Reports can map relevant findings to SOC 2, ISO 27001, and PCI DSS while staying focused on exploitable application risk.

OWASP Top 10

Web application risk categories.

OWASP ASVS

Application security requirements.

Shield Check

Compliance support

SOC 2, ISO 27001, and PCI DSS mapping when supported by scope.

OWASP WSTG

Web security testing guidance.

PTES

Penetration testing methodology.

NIST SP 800-115

Technical security testing guidance.

CWE Top 25

High-impact software weaknesses.

Meet our experts

Expert-led web application pentesting

Named security researchers run the engagement, validate every finding, and stay available throughout testing and remediation.

MedalNamed

expert team for each engagement

Seal CheckDirect

access throughout testing

BugManual

validation of every finding

Rocket LaunchClear

remediation guidance for engineers

Credentials across offensive security and application security

Research-led testing backed by practical application security experience.

What we test in web applications

Coverage is shaped by your application’s architecture, user roles, data flows, and risk profile—not a generic vulnerability checklist.

In scope

Authentication bypass

Login, recovery, MFA, account lifecycle, and identity-provider weaknesses.

In scope

Injection

SQL, command, and template injection where relevant to the technology.

In scope

Cross-site scripting

Stored, reflected, and DOM-based cross-site scripting.

In scope

Broken access control

Horizontal and vertical privilege escalation across users, roles, and tenants.

In scope

IDOR

Object-reference flaws that expose or change another user’s data.

In scope

Business-logic flaws

Workflow abuse, race conditions, and ways to bypass intended controls.

In scope

Session management

Session fixation, hijacking, invalidation, cookie controls, and account-state changes.

In scope

Server-side request forgery

Server-side requests that reach unintended internal systems or cloud metadata.

Our Process

How our web application penetration testing works

A structured process informed by OWASP WSTG, PTES, and your application’s architecture, roles, and risk profile.

01

Scope and reconnaissance

Confirm targets, roles, access, integrations, safety limits, and the exposed attack surface.

02

Authentication and session testing

Test login, recovery, MFA, sessions, identity integrations, and account lifecycle controls.

03

Authorization and role testing

Test privilege escalation, IDOR, administrative functions, and separation between users, roles, and tenants.

04

Input and client-side testing

Test injection, cross-site scripting, file uploads, browser controls, and application-specific inputs.

05

Business logic and attack chaining

Test workflows and application logic, then connect weaknesses where they create a more serious attack path.

06

Reporting and fix validation

Document validated findings, business impact, and remediation guidance; verify agreed fixes when included.

Retesting & Attestation
A very good experience: a great, professional team and good value for money.

Financial technology

Related services

Phone Device

Mobile application penetration testing

Test the iOS and Android apps connected to your product.

Learn More
Database

API penetration testing

Test the APIs behind your web and mobile applications.

Learn More
Cloud

Cloud penetration testing

Test the cloud environment where your application runs.

Learn More

Frequently asked questions

Answers about scope, timing, access, reporting, compliance, and remediation.

Pricing depends on application size, roles, workflows, environments, and testing depth. Share your application and objectives for a fixed scope and quote.
The current average start time is two weeks, subject to scope, access, environment readiness, and researcher availability.
No. Blaze can test black-box, grey-box, or white-box. Credentials and documentation improve coverage, while source access can support deeper analysis.
Testing is planned to minimize disruption. Destructive actions require explicit approval, and sensitive work can be performed in staging.
Scanners identify known patterns. A pentest adds manual analysis of access control, business logic, sessions, workflows, and chained attack paths.
It can provide independent evidence and map relevant findings when the scope supports it. A pentest does not create compliance by itself.
When retesting is included, researchers verify agreed fixes and update the report with the result.
Look for manual business-logic and access-control testing, validated evidence, practical remediation, and direct researcher access. Ask for a redacted sample report.

Ready to test your web application?

Talk to an expert about your application, timeline, user roles, and required coverage.