Manual application penetration testing for B2B SaaS

Uncover critical vulnerabilities and complex attack chains in your app and APIs — to reduce breach risk, unblock Enterprise deals, and pass SOC 2 / ISO 27001 audits.

Trusted by B2B SaaS platforms

Hired by Enterprise to pentest their SaaS vendors

Sound familiar?

Post-incident

There's been an incident.

Yours, a near miss, or one in your industry that hit too close. Internal review patched what was obvious — but customers, partners, and investors need an independent report to trust that the problem is actually closed.

Fundraising & M&A

Your next round or M&A is approaching.

Investors and acquirers are flagging the lack of an independent security audit as a risk. It's becoming a blocker on valuation — or on the deal itself.

Weak pentest

Your last pentest felt like a checkbox.

You paid for it, got a PDF full of low-signal noise, and engineers ignored most of it. You're not sure if the product is actually any safer.

The cost of inaction

8 out of 10

Enterprise B2B deals now stall or fail without an independent third-party pentest report.

50200%

of your annual ARR is what a single breach typically costs — through contract penalties, regulatory fines, customer churn, and remediation.

60%? 80%?

How many of your customers leave after a publicized breach? Either number is unacceptable — and one breach is all it takes.

What you should test

Deep manual testing of everything your users touch — and everything an attacker can reach.

Black-box

External attacker simulation, starting with what's publicly visible.

Grey-box

Authenticated testing across all user roles in your application.

Vulnerability classes to hunt

  • Business logic
  • Broken access control
  • BOLA
  • BFLA
  • IDOR
  • Privilege escalation
  • Authentication bypass
  • Session management
  • JWT
  • OAuth
  • SSO
  • SAML
  • MFA bypass
  • Password reset abuse
  • Account takeover
  • Tenant isolation
  • Cross-tenant data leakage
  • SQL injection
  • NoSQL injection
  • Command injection
  • LDAP injection
  • Template injection
  • Reflected XSS
  • Stored XSS
  • DOM XSS
  • SSRF
  • XXE
  • CSRF
  • Mass assignment
  • Race conditions
  • Insecure deserialization
  • File upload
  • Path traversal
  • Open redirects
  • Subdomain takeover
  • Rate limiting
  • Business logic abuse
  • Cryptographic weaknesses
  • Cache poisoning
  • HTTP request smuggling
  • Information disclosure
  • Misconfigurations
  • GraphQL injection
  • GraphQL introspection abuse
  • API authorization
  • API key leakage
  • Webhook abuse
  • Replay attacks
  • Logic-based DoS

Application surface to cover

  • Web frontend
  • Web backend
  • REST APIs
  • GraphQL APIs
  • Public APIs
  • Internal APIs
  • Mobile APIs
  • Webhooks
  • WebSockets
  • Authentication
  • Authorization
  • SSO
  • SAML
  • OAuth
  • MFA
  • Password reset
  • Account recovery
  • Session management
  • User roles
  • Permission models
  • Multi-tenant boundaries
  • Tenant management
  • Admin panels
  • Internal tools
  • File upload
  • File access
  • Third-party integrations
  • Payment flows
  • Billing logic
  • Search
  • Export
  • Import
  • Background jobs
  • Async queues
  • Email and notification logic
  • Subdomains
  • Forgotten assets

What manual actually means

Most security work stops at finding a vulnerability. We treat that as the starting point.

Example: SQL Injection

Level 1 — Surface

Detect & flag

Typical result for scanners, freelancers, bug bounty

A scanner flags an SQL injection in a URL parameter. The report lists it as "High". Nothing more.

Level 2 — Standard

Confirm & report

Typical result for most pentest vendors

A tester confirms the injection, extracts a few user records as proof, writes the finding. Engagement ends.

Level 3 — Deep

Chain & impact

Typical result for XRAY CyberSecurity

Identify SQLi, extract user records, correlate with credentials from a forgotten backup on a sister subdomain, identify high-value targets, exploit a tenant-isolation flaw, build a custom tool to gain administrative access — and demonstrate the path to compromise your Enterprise customer's data.

Example: Cross-Site Scripting

Level 1 — Surface

Detect & flag

Typical result for scanners, freelancers, bug bounty

A scanner flags reflected XSS in a search input. Marked as "Medium". Listed.

Level 2 — Standard

Confirm & report

Typical result for most pentest vendors

A tester confirms the XSS, demonstrates a popup as proof-of-concept showing access to the session token, files the finding. Done.

Level 3 — Deep

Chain & impact

Typical result for XRAY CyberSecurity

Identify XSS, build a PoC exfiltrating session tokens, deliver to platform users, harvest tokens, pivot through a role-validation flaw to escalate privileges, target admins the same way, steal admin tokens, hijack tenant administration — and demonstrate platform takeover, including the path to compromising Enterprise customers.

Custom chains

Every SaaS has its own attack chain

Your platform has its own — possibly several — built into your architecture, business logic, and APIs.

Sometimes the chain leads to full compromise. Sometimes your defenses break it midway — and we report exactly where, and why.

Either way: you see what an attacker actually sees.

Not sure what's in scope for your product? Let's map out the best fit.

A senior pentester (not a sales rep) will get back to you with an honest read on what would actually be worth testing.

What you'll receive

Five deliverables — built for the people who'll actually use them: your engineers, your C-level, your auditors, and your Enterprise customers.

Sample of XRAY Cybersecurity deliverables: Technical Report, Executive Summary, Retest Report, with Security Certificate on top

Want to see what these actually look like?

Real structure, real findings, real format. The same documents your team and your auditors will see.

Interim Urgent Report

When we find Critical, you find out today.

If we discover a Critical-severity vulnerability mid-engagement that needs immediate attention, you get an alert with reproduction steps and recommended actions. We keep testing, you start remediating in parallel. No waiting until the final report.

For Your engineering team, your CTO

Technical Report

Prioritized findings your engineers can act on the same day.

Every vulnerability with reproduction steps, proof-of-concept exploitation, business impact, and a prioritized remediation roadmap. No false-positives. No filler. Built so your developers know exactly what to fix and in what order.

For Your engineers, your CTO, your security team

Executive Summary

What the board and investors actually need to know.

A business-language report covering the security posture of your product, the risks identified, their potential business impact, and the path to remediation. Written for CEOs, boards, investors, and Enterprise procurement teams — not engineers.

For Your CEO, your board, investors, M&A counterparties, and your customers

Retest Report

Verified evidence that the fixes actually work.

After your team remediates the findings, we re-test each one and confirm the fixes hold under the same exploitation attempts. The updated report is your proof that the vulnerabilities are actually closed — not just patched on paper.

For Your auditors, your Enterprise customers

How we deliver on your goals

Industry-standard methodologies, executed by senior engineers.

Standards

Methodologies we follow

  • OWASP
  • PTES
  • NIST SP 800-115
  • MITRE ATT&CK

Compliance pentest requirements we satisfy

  • SOC 2
  • ISO 27001
  • GDPR
  • HIPAA
  • PCI DSS

The principles behind it

Manual hacking

Scanners run only as a baseline. Every finding is hand-built and verified by a senior engineer — exploited and chained manually, with your platform's context in mind.

Cyclical, not linear

Each finding feeds the next. New access reveals new attack surface. We loop back, dig deeper, and chain — until we reach the deepest impact your architecture allows.

Business impact, not a bug list

A list of CVEs doesn't tell you what an attacker would actually do to your business. We translate every finding into a real-world scenario — what gets compromised, who loses what, and how the chain unfolds.

Senior engineers only

No juniors learning on your product, no outsourced backfill, no swapping engineers mid-engagement. Every engagement is run by senior offensive engineers with deep B2B SaaS experience.

Quality over speed

We're not a conveyor optimizing for throughput. We take fewer engagements at a time and go deep on each — that's the trade-off.

Do no harm

All testing happens under signed Rules of Engagement. High-risk actions on production are coordinated with you in advance. Critical findings trigger an immediate alert — no surprises, no broken environments.

Actionable findings, zero false-positives

Every finding is verified, prioritized, and documented with reproduction steps and remediation guidance. Your engineers know exactly what to fix first — and they don't waste a day on noise.

Engineer-to-engineer communication

Direct access to our engineers throughout the engagement. No sales translators, no project managers gatekeeping technical detail.

Hacking as a craft

We hire engineers who hack on their own time — for research, for CTFs, for the love of the craft. Our team treats every engagement as a challenge to solve, not a ticket to close.

From your first message to your final certificate

A structured engagement built around your team — with senior engineers, direct communication, and zero surprises.

  1. First conversation

    What happens
    • You reach out — by call, form, or email, whichever you prefer
    • A senior engineer (not a sales rep) gets back to you
    • We define your goals and scope of the engagement together
    • We give you an honest read on whether we're the right fit, and what would actually be worth testing
    You receive A clear answer on direction — and whether we're a match — before anything is signed.
  2. Scoping & proposal

    What happens
    • A technical session with your team to understand your architecture, your roles, and your application surface
    • We walk you through a sample report so you know exactly what the deliverables look like
    • You get a detailed proposal: scope, approach, timeline, price
    You receive A full proposal and a sample report you can review with your CTO, CISO, CEO, and procurement before deciding.
  3. Kick-off

    What happens
    • Contract and NDA signed
    • Rules of Engagement signed — clear boundaries on what we test, when, and how
    • Access provisioning and documentation handoff
    • A senior engineering team is assigned to your engagement and briefed
    You receive Signed engagement contract, Rules of Engagement document, kickoff meeting summary.
  4. Reconnaissance & threat modeling

    What happens
    • Passive intelligence gathering on your public surface
    • Architecture mapping — how your application is built and where the highest-risk areas are
    • Threat model: what's worth attacking, and how an attacker would actually approach your product
    • A direct engineer-to-engineer communication channel is set up for the duration of the engagement
    You receive Anything urgent that surfaces during this stage is flagged to you immediately. Otherwise, this stage feeds directly into the testing that follows.
  5. Active exploitation

    What happens
    • Manual hacking, vulnerability discovery, exploitation
    • Attack chain construction across multiple findings
    • Impact assessment for every finding before exploitation on production
    • Continuous loop: each new access reveals new attack surface, and we go deeper
    You receive If we find a critical attack path that is easy to exploit and demands immediate action, you get an Interim Urgent Report — an alert with reproduction steps and recommended response. We keep testing, you start remediating in parallel.
  6. Primary report delivery

    What happens
    • Findings consolidated, verified, and documented
    • Technical Report and Executive Summary written
    • Remediation roadmap prioritized
    You receive A Technical Report (for your engineers) and an Executive Summary (for your board, Enterprise customers, and auditors).
  7. Debrief call

    What happens
    • Walkthrough of findings with your engineering team
    • Walkthrough of business impact with your leadership
    • Q&A on remediation priorities — what to fix first and why
    You receive A prioritized remediation roadmap and direct answers to your team's questions.
  8. Remediation support

    What happens
    • Support for your developers throughout the fix cycle
    • Clarification on attack vectors and remediation approaches
    • Pace depends on your team — we don't push and we don't drag
    You receive Technical guidance throughout remediation, scoped to your engagement.
  9. Retest & final certificate

    What happens
    • Each remediated finding is re-tested against the original exploitation
    • Verification that the fix holds — not just patched on paper
    • Updated reports and security certificate issued
    You receive A Retest Report, an updated Technical Report, and your Security Certificate.

Recognized by the industry

Top-rated on industry platforms

  • Top Clutch — Application Security Company 2026
  • Clutch Fall Champion 2025
  • Top Clutch — Penetration Testing 2026
  • Top Penetration Testing 2024 Award

Our engineers hold certifications including

  • OSCP+
  • CRTL
  • BSCP
  • OSEP
  • CEH
  • PNPT

In their own words

SaaS · Email Platform
XRAY CyberSecurity provided penetration testing for our products built on different technologies. We were able to discover vulnerabilities, fix them, and receive confirmation through retesting that they were mitigated. Communicating with their team felt more like working with coworkers than an external vendor — they were professional, knowledgeable, and gave us valuable advice.
Oleg Bida Information Security Manager Full review on Clutch →
SaaS · LMS Platform
XRAY CyberSecurity conducted gray-box penetration testing following OWASP methodologies. Their thorough manual analysis identified vulnerabilities worth attention, and their detailed technical and executive reports — followed by a retest validating our remediation — allowed us to proceed with ISO 27001 certification.
Alex Slubskyi CTO · Davintoo Full review on Clutch →
SaaS · Logistics Platform
XRAY CyberSecurity conducted thorough assessments across our web applications and cloud environments, simulating real-world attack scenarios. Their detailed reports provided clear, actionable insights that significantly improved our security posture, and their ability to communicate complex findings in an understandable way was invaluable to our team.
Taras Komenda CEO · MINT Innovations Full review on LinkedIn →
Application
The work was done quickly and professionally. XRAY CyberSecurity's specialists highlighted our vulnerable points, enabling us to improve our software quality. We received a report with detailed penetration scenarios and both technical and organizational recommendations for remediation and prevention.
Oleg Khavruk IT Director · Nash Format Full review on Forbes →
5/5 on Clutch read all reviews

Ready to test your application?

Frequently asked questions

Will testing impact our production environment?

No, and that's by design. Every engagement runs under signed Rules of Engagement that define exactly what we test, when, and how. High-risk actions on production — anything that could affect performance, data integrity, or real users — are coordinated with you in advance and only executed with your explicit approval. We've never taken down a client's production environment, and our process is built to keep it that way.

If you'd prefer testing on staging, we'll work with what you have. We don't require a separate environment to deliver real findings — we adapt to yours.

Will your report pass our auditor and our Enterprise customer's security review?

Yes. Our testing is built on OWASP WSTG, PTES, and NIST SP 800-115 — the methodologies SOC 2 and ISO 27001 auditors expect to see. Each report includes an Executive Summary written for procurement and leadership, and a Technical Report with reproduction steps and remediation guidance for engineers.

Our reports have been accepted by the security teams of global Enterprises — including some who hired us directly to test their own SaaS vendors. They will pass yours.

What if you don't find any vulnerabilities?

This is rare — in the engagements we've run on B2B SaaS, we've always found something worth reporting. But if we don't, you still get the full deliverables: a report confirming the depth of testing performed, the methodologies applied, and the components covered. That report is the same artifact your auditors and Enterprise customers need.

A clean pentest from a senior team is also a meaningful result — and one that few products can actually claim.

How do you handle confidentiality, our data, and legal accountability?

Every engagement starts with a signed NDA and a contract with XRAY Cybersecurity — full corporate liability and legal accountability. Findings, exploitation evidence, and any data accessed during testing are stored encrypted, accessed only by the assigned engineers, and deleted from our systems after the engagement closes (with the exact retention period defined in your contract).

We carry professional indemnity insurance, and our team operates under strict internal data handling policies. If something goes wrong, you have a company to hold accountable — with legal recourse, not a hope.

How much effort does this require from our team?

Less than most clients expect. The setup is concentrated in the first few days — provisioning access, sharing documentation, and walking through your architecture in a kickoff session. After that, your team's involvement is mostly answering occasional clarifying questions.

The real time investment comes during remediation, when your engineers fix the findings. That's on your timeline, not ours — and we support them with direct technical guidance rather than adding more meetings.

Do we need to disable WAF, whitelist your traffic, or coordinate with our SOC and monitoring during testing?

We discuss all of this during the kickoff session and adapt to your setup.

For most engagements, we recommend either whitelisting our IPs at the WAF level (so we test the application, not your perimeter) or testing the WAF behavior explicitly as part of scope — your choice. If you have a SOC or monitoring team, we coordinate notifications so our testing doesn't trigger an unnecessary incident response. We aim to minimize noise — but we don't disable any protections without your decision.

What if we need to pause or postpone the engagement?

It happens — release crunches, internal incidents, leadership changes. We've designed our process to accommodate this. Pauses are coordinated with your team, the engagement timeline shifts accordingly, and there's no penalty for reasonable rescheduling within the engagement period.

Is retesting included? How long do we have to fix the findings before we lose the chance to retest?

Retesting is included in every engagement — there's no separate charge. After your team remediates the findings, we re-test each one against the original exploitation to verify the fix actually holds, and issue an updated Technical Report and Security Certificate.

The retest window is agreed up front and reflected in your engagement scope, so your team has the time it actually needs to remediate. We don't push, we don't drag, and we don't bill you again for work that should have been part of the original engagement.

Are there any hidden fees? What's actually included in the price?

The price you see in the proposal is the price you pay. It's fixed, written into the contract, and tied to the agreed scope. Full cycle from kickoff to final certificate is included — testing, all reports (Interim Urgent, Technical, Executive Summary, Retest), the debrief call, remediation support, retesting, and the Security Certificate.

There are no hidden fees, no per-finding charges, no extra invoices for retests, reports, or follow-up calls. The only reason the price changes is if you decide to expand the scope mid-engagement — adding new components, new roles, or new applications. In that case, we estimate the additional effort and agree the change with you in writing, before any work begins. Nothing surprises you on the invoice.

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