Security audit • Pentest

0day.cyou

Your product should survive more than launch — it should survive attack.

I review web applications, APIs, and internal panels to show where the real risk actually is. You get a clear report on what matters, what is exploitable, and what to fix first.

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Manual review of web applications, APIs, admin panels, and critical workflows.

Audit request

Leave your contact details and a project link. I’ll get back to you with scope, timeline, and the best format for the review.

Name / company Contact

Project URL

Audit scope Timeline

Short context

What is covered

The review is built around real attack paths, not a polished checklist.

Each section has one job: show where the product is exposed and what should happen next.

Attack surface and exposed entry points

Domains, subdomains, external services, admin panels, open ports, forgotten routes, and everything that makes the project wider for an attacker than it looks from inside the team.

Subdomains Admin panels External services

Access control, roles, and authorization flaws

IDOR, broken access control, role bypass, weak segregation, and session or token flaws — everything that lets a user go further than they should.

IDOR Privilege escalation Session flaws

Critical business logic and money flows

Payment flows, back-office operations, API integrations, sensitive data, and functionality where one mistake turns into real loss or exposure.

Payments Backoffice Partner API

Attack path review I look not only at isolated bugs, but at the path from an external entry point to actual impact.

Manual review

Public surface Domains, API routes, admin endpoints, external integrations.

Auth & access Roles, ownership checks, tokens, sessions, privilege boundaries.

Business actions Payments, withdrawals, back-office workflows, operations on other users’ objects.

Impact Exposure, bypass of restrictions, data changes, financial damage.

Real
risk

Approach From entry point to attack scenario

Focus Not noise — what actually breaks the product

Result Clear where to reduce risk first

Deliverable

A report you can hand directly to engineering and management.

No decorative PDFs for the sake of PDFs. Just priority, business impact, reproduction steps, and practical remediation guidance.

Severity + impact Clear what is critical now and what can be scheduled.

Repro steps So the team does not have to guess how to reproduce the issue.

Fix hints So risk can be reduced faster, without arguing over wording.

Report Security audit report Critical

Project Web app + API

Findings 12 issues

Priority Fix now

IDOR in the admin API exposes access to other users’ operations

Impact View and modify other accounts’ data without the required role.

Repro Changing the identifier in the request returns another user’s objects.

Fix Enforce server-side ownership checks and strict role-based access validation.

FAQ

A few practical questions.

No filler text and no attempt to hide the point behind marketing.

What kinds of products do you work with?

SaaS products, fintech tools, customer portals, internal panels, API services, and products with critical flows.

Can we start with a smaller scope?

Yes. We can start with one area: authorization, API, admin panel, payment flow, or exposed perimeter.

Do you need source code access?

Not necessarily. In many cases, a test or production-like environment and a clearly agreed scope are enough.

Want to understand your real exposure before an incident does it for you?

Leave a request and we’ll define the right review format for your product.

Request audit