Do you need accounts and documentation?

Yes. Authenticated testing with accounts for each role finds far more than black-box testing, and API documentation lets us cover logic rather than guess at it.

Do you test business logic, not just technical flaws?

Yes, and that is often where the serious findings are — skipped approval steps, manipulable quantities and prices, and workflows that can be replayed.

How does a web application security engagement start?

With a short discovery conversation and a written view of scope, risk and the decisions to be made. That view is useful to you whether or not the work continues.

How is a web application security engagement priced?

Scope and, where relevant, rules of engagement are agreed in writing before any work begins, and the engagement is a fixed fee for that scope or phased with a cost envelope per phase — so you know the cost and the boundaries up front. Larger pieces of work are broken into phases with findings delivered early rather than a single invoice at the end.

Cybersecurity · Secure

Web Application Security

We test web applications the way an attacker who holds a legitimate account would, probing authorisation boundaries, business logic, session handling and data exposure rather than only injection patterns. We work with accounts for each user role so we can reach the privileged functions and cross-user access that black-box testing never sees. Every finding is reported with the steps to reproduce it, the evidence behind it and the practical fix. The aim is to show not just that a weakness exists but what it would let someone actually do to your users and data.

In short

Web application security testing examines authentication, authorisation, business logic and data handling in your web applications. It goes beyond common injection patterns to the authorisation boundaries and workflow logic where the most damaging flaws usually hide.

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What we do

The work inside web application security.

Authentication and session testing

We test login, multi-factor enrolment, password reset, session lifetime and token handling for ways in that bypass the intended controls. This includes reset flows that leak tokens, sessions that outlive logout, and multi-factor steps that can be skipped. The outcome is a clear picture of whether an account can be taken over and how.

Authorisation and access control

We attempt both horizontal and vertical privilege escalation, trying to read and act on records belonging to other users and to reach functions reserved for higher roles. We test every role and object reference we are given rather than sampling. The result shows precisely where the application trusts the client when it should not.

Business logic abuse

We test the workflows that carry money, entitlement or approval for sequence, validation and replay flaws that the rules never anticipated. That means manipulating quantities and prices, skipping approval steps and repeating actions that should happen once. These are the findings that automated tools cannot reach and that cause real financial loss.

Data handling and exposure

We examine what the application discloses through responses, error messages, logs, caches and downloadable files. Verbose errors, predictable identifiers and over-sharing APIs frequently expose data the user should never see. We document each exposure and the data class it affects so the sensitivity is clear.

What you receive

Deliverables, in writing.

Documented output your teams keep and can act on without us in the room.

Authenticated test coverage across each user role
Findings with reproduction steps and evidence
Business logic abuse cases documented
Remediation guidance and post-fix retest

When this work helps

You may be facing this.

The application handles payments, personal data or entitlements
Roles and permissions have grown organically
A penetration test is required before a major customer signs

How an engagement runs

Discover, assess, design, deliver.

01
Discover
Understand what matters most, the obligations in play, and what the organisation is genuinely trying to protect. We agree scope and rules of engagement in writing here, so testing is bounded and authorised before it begins.
02
Assess
Test and review the systems in scope, and establish real exposure rather than theoretical risk. We gather evidence for every finding, so severity reflects what we demonstrated rather than what is merely conceivable.
03
Design
Prioritise remediation, control improvements, and architecture changes against risk and effort. We sequence the work so the exposures that matter most are closed first, within what the team can realistically do.
04
Deliver
Support remediation, retest what was fixed, and help the practice hold as the environment changes. We confirm fixes actually closed the issue, rather than taking remediation on trust.

Where we work

Delhi, India — and wherever the work is.

Fidova delivers cybersecurity consulting and technical assurance from Delhi, India, and works with clients internationally; testing and review are performed remotely against your environments, with on-site work arranged when scope requires it.

Engagements run in English, are scheduled around your time zone, and can be delivered remotely end to end, with on-site time planned where a phase genuinely benefits from being in the room.

Related services

Often needed alongside this.

Mobile Application Security

Mobile application security testing examines the app on the device, the traffic it sends, and the backend APIs it depends on. It covers what the app stores and leaks locally as well as the server-side weaknesses that sit behind it, because the most serious issues are usually in the backend rather than the binary.

API Security Testing

API security testing examines authentication, authorisation, input handling and rate controls across your interfaces. It focuses on the authorisation and data-access failures that dominate real API incidents rather than only surface-level input flaws.

Network Security Assessment

Network security assessment examines exposure, segmentation and internal attack paths across your network estate. It establishes both what is reachable from the internet and how far an attacker could move once they had a foothold inside.

All cybersecurity services

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