Home/Services/Offensive Security/Web Application Testing

Offensive Security

Web Application Testing

Deep, OWASP-aligned testing of your web applications — covering injection, broken access control, authentication flaws, and the business-logic abuse automated scanners always miss.

Request this test → See our methodology

Overview

Manual depth where scanners stop.

Web applications are the most exposed and most targeted part of most organisations. Our testing goes well beyond automated scanning, with experienced testers manually exploring authentication, authorisation and the workflows unique to your application.

We map findings to the OWASP Top 10 and test against the OWASP Application Security Verification Standard, so results are both actionable for your developers and credible for your auditors and customers.

What we test

Focus areas of the assessment.

The core areas we examine in a web application testing engagement.

Injection flaws

SQL, command, template and other injection across inputs and integrations.

Broken access control & IDOR

Horizontal and vertical privilege issues and insecure direct object references.

Authentication & session management

Business-logic abuse

Workflow and logic flaws unique to your application that tooling cannot find.

Sensitive data exposure

Information leakage through responses, errors, storage and transport.

Security misconfiguration

Headers, framework defaults, verbose errors and exposed components.

Who needs this

Who this is for

Teams and businesses this work is built for.

SaaS & product companiesCustomer trust and contractual security testing.

E-commerce & fintechHandling payments and sensitive data.

Banks, NBFCs & insurersRegulator-mandated application security.

Government & public-sector appsCERT-In audits before go-live.

Healthcare platformsProtecting patient data.

Teams launching a new web appPre-release security validation.

Regulatory drivers

Why this is required

Web applications are the most exposed part of most organisations and a specific focus of security standards and data-protection law, so regular, independent application testing is required by payment, regulatory and contractual obligations.

PCI DSS v4.0 (Req 6 & 11)

Requires applications handling cardholder data to be developed securely, tested for vulnerabilities, and protected against the common attacks captured in the OWASP Top 10.

RBI / SEBI / IRDAI directions

Expect periodic application security testing of customer-facing and critical web applications for regulated entities, with timely remediation.

DPDPA & GDPR

Require reasonable security safeguards for applications that process personal data, including protection against known web vulnerabilities.

CERT-In baselines

Web application testing aligns with CERT-In audit expectations for Indian organisations before and after go-live.

How we work

A disciplined testing methodology.

A repeatable, standards-based process that balances depth with operational safety.

Scoping & application walkthrough

Understanding roles, workflows and the technologies behind the application.

Mapping & content discovery

Spidering the app to map every page, parameter and hidden endpoint.

Authentication & session testing

Probing login, session handling, access control and privilege boundaries.

Injection & business-logic testing

Testing for OWASP issues — injection, XSS, IDOR — and logic flaws.

Exploitation & impact validation

Safely confirming exploitable issues with proof-of-concept evidence.

Reporting & retest

Prioritised findings with developer-ready fixes and a verification retest.

What you receive

Deliverables built for every audience.

Executive summaryBoard-ready overview of application risk and themes.
OWASP-mapped findings reportEach issue mapped to the OWASP Top 10 with CVSS and evidence.
Proof-of-concept evidenceRequests, responses and steps to reproduce each finding.
Secure-fix remediation guidanceDeveloper-ready fixes for every issue.
Retest report & attestationConfirmation that fixes hold, with an attestation letter.

Standards & frameworks

This assessment is aligned to recognised industry methodologies.

OWASP Top 10OWASP ASVSOWASP WSTGPTESSANS

Checklist

Are you ready? A quick checklist

What to have in place before we begin.

Application URLs and environments listed

Test and admin accounts per role

Staging vs production agreed

WAF allow-listing for test source IPs

Sensitive / no-go actions flagged

API or Swagger docs shared if applicable

Data reset plan for state changes

Remediation owner identified

FAQ

Common questions

Do you test in production or a staging environment?

Either. Staging avoids any production impact, while production gives the most realistic picture. We agree the safest approach with you and a rollback plan for any state-changing actions.

Can you test applications behind a login?

Yes — grey-box testing with valid accounts at different privilege levels is recommended, as it surfaces access-control and logic issues an unauthenticated scan never reaches.

Do you provide a certificate for customers?

On completion and successful retest we issue an attestation letter you can share with clients and auditors confirming the assessment and its outcome.

How long does a web app test take?

Typically one to two weeks per application, though it depends on the number of user roles, the size of the attack surface and how much business logic is involved. A small single-role app may take a few days, while a large multi-tenant platform with complex workflows takes longer. We confirm the exact effort and timeline during scoping.