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Web Application Penetration Testing

We test your web application the way attackers do. Not the way compliance checklists say to.

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What Sets Our Web Application Testing Apart

Most web app pentests are a wrapper around an automated scanner. A Raxis pentest starts where scanners stop.

OWASP Top 10 Coverage

Every Raxis engagement covers the full OWASP Top 10 (2021), from broken access control and injection to insecure design, vulnerable components, and SSRF. Coverage is the floor, not the ceiling.

Business Logic Exploitation

Logic flaws are vulnerabilities scanners can’t see. Coupon stacking, multi-step workflow bypasses, race conditions in checkout, privilege escalation through state manipulation. We map the application’s intent, then find the gaps between intent and implementation.

Authentication and Access Control Validation

We test login flows, session handling, multi-factor enrollment, password recovery, and authorization at every endpoint. Then we test the assumptions, the trust boundaries the app silently relies on, the user states it didn’t expect to encounter.

Adversary Perspective

We approach your application the way an attacker would, looking for value first, then for the path. The output is not a scanner export. It’s a narrative of how a real adversary would compromise you, written by the engineer who did it.

Attackers Hit Web Apps First

Every release widens the attack surface, and every framework upgrade introduces new ways to break in.

2026 WEB APPLICATION THREAT DATA

New CVEs published in 2025, an all-time record

48,185

Source: EDGESCAN 2026 VULNERABILITY STATISTICS REPORT

Average to remediate a high or critical app vulnerability

55 days

Source: EDGESCAN 2026 VULNERABILITY STATISTICS REPORT

Enterprise vulnerabilities still unresolved after 12 months

37%

Source: EDGESCAN 2026 VULNERABILITY STATISTICS REPORT

Known exploited critical vulnerabilities left un-remediated

74%

Source: Verizon DBIR 2026

Comprehensive Role-Based Testing

Test from every angle your users (and attackers) will hit your web app.

Unauthenticated

We hunt for flaws in the login, registration, and password recovery flows. SQL injection, authentication bypass, session fixation, and the endpoints developers forgot to lock down.

Standard User

Logged in with limited permissions, we attempt operations that should only be available to higher-privileged users. Vertical privilege escalation, IDOR, missing authorization checks.

Administrative User

With full access, we map the application end to end and look for technical vulnerabilities, misconfigurations, and business logic gaps that admins can exploit (deliberately or accidentally) to break the system.

Cross-Tenant (Multi-Customer SaaS)

For SaaS applications, we validate that one customer’s session, token, or input can’t reach another customer’s data. Tenant boundary failures are quiet, and they’re devastating when they go public.

Vulnerabilities We Test For

Every Raxis engagement covers the full OWASP Top 10:2025.

Beyond the OWASP Top 10

Cross-Site Request Forgery (CSRF, removed from the Top 10 in 2017 but still common), business logic errors that scanners can’t reason about, complex multi-step workflow abuse, and API-specific abuse patterns covered separately by the OWASP Top 10.

Broken Access Control

The most prevalent category in OWASP’s data, year after year. We test horizontal and vertical privilege escalation, IDOR, forced browsing, missing authorization checks, and JWT manipulation. Server-Side Request Forgery (SSRF) was consolidated into this category in the 2025 edition, so we also test for coerced server-side requests to internal services, cloud metadata endpoints, and attacker-controlled destinations.

Security Misconfiguration

Jumped from #5 in 2021 to #2 in 2025, the largest position move in the new edition. Cloud-native architectures and infrastructure-as-code have made misconfiguration the dominant attack surface. We test for default credentials, exposed admin panels, verbose error messages, missing security headers, overly permissive cloud storage, and the small misconfigurations that compound into a real attack path.

Software Supply Chain Failures

New in 2025. Expands the old “Vulnerable and Outdated Components” category beyond known CVEs to cover compromised dependencies, malicious packages, dependency confusion, typosquatting, build-pipeline tampering, and SBOM gaps. We identify exploitable supply chain exposures in your application’s actual context, not just what’s flagged in your dependency tree.

Cryptographic Failures

Weak or improper cryptography, plaintext storage of sensitive fields, weak TLS configurations, predictable tokens, and broken key management. We test what your application protects, how it protects it, and where the protection breaks down.

Injection

SQL injection, NoSQL injection, command injection, LDAP injection, and cross-site scripting (XSS), consolidated into this category in 2021 and unchanged in 2025. We test parameterization, sanitization, and the trust your application gives to user input.

Insecure Design

Architectural flaws no amount of code-level patching can fix. Missing rate limits, abusable workflows, trust boundaries that shouldn’t exist, and threat models that were never built. We test the application your developers thought they built against the application that actually shipped.

Authentication Failures

Renamed from “Identification and Authentication Failures” in 2025. Credential stuffing exposure, weak password policies, broken MFA enrollment, predictable session IDs, missing brute-force protection, and password reset flows that leak data or accept attacker-controlled inputs.

Software or Data Integrity Failures

Insecure deserialization, unsigned updates, untrusted CI/CD pipelines, inclusion of third-party scripts without integrity validation, and data integrity assumptions that fall apart when challenged. The 2025 rename (“or” instead of “and”) acknowledges these are independent failure modes, often exploited separately.

Security Logging and Alerting Failures

Renamed from “Logging and Monitoring” in 2025 to emphasize alerting (great logs with no alerts catch nothing in real time). We probe for the gaps in your detection coverage, the events your application doesn’t log, the alerts that don’t fire, and the attack patterns that go unnoticed because nobody’s watching.

Mishandling of Exceptional Conditions

New category in 2025. Covers what happens when applications hit unexpected states: error conditions, edge cases, timeouts, race conditions. The classic pattern is code that enforces access control on the happy path but fails open in error conditions. We test fault paths, exception handling, and the assumptions your application makes when something goes wrong.

How We Test

Guided by the OWASP Web Security Testing Guide (WSTG) and grounded in MITRE ATT&CK. Manual exploitation backed by automated reconnaissance, tuned to your application’s actual surface.

Black Box, Grey Box, or White Box

We work from outside in (no credentials), partially informed (test accounts and documentation), or fully informed (source code review). Most engagements are grey box. The right approach depends on your goals, your timeline, and what’s at stake.

Manual Plus Automated

Automated tools handle reconnaissance, surface mapping, and known-CVE checks. Engineers handle exploitation, business logic abuse, and chaining. Roughly 70% of the value of a Raxis engagement comes from work no scanner can do.

Real-Time Findings Through Raxis One

Critical and high-severity findings hit your Raxis One portal as we discover them, with proof-of-concept evidence and remediation guidance. You start fixing while we keep testing.

Direct Engineer Access

Talk to the engineer testing your application. No ticket queues. Ask questions, validate assumptions, walk through findings on a call. The person hacking your app is the person you talk to.

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Our Testing Process

A defined path from scoping to verified remediation, with your team informed at every step.

1. Scope and Kickoff

We define the application, roles, environments, and goals, then hold a kickoff call to set rules of engagement and flag anything that needs special handling.

2. Attack and Exploit

Engineers map your application, then manually exploit what they find, chaining vulnerabilities to demonstrate real impact. Critical findings reach you immediately.

3. Report and Debrief

You receive the full report in Raxis One, then walk through the findings live with the engineer who performed the test.

4. Retest and Verify

After your fixes, we retest each finding at no extra cost and deliver an updated report confirming remediation.

What You Receive

Every Raxis web application engagement delivers more than a PDF.

Detailed Technical Report

Every finding includes proof-of-concept evidence, reproduction steps, business impact, and prioritized remediation guidance written by the engineer who exploited it.

Executive Summary

A separate, board-readable summary of the engagement, the risk picture, and the actions that move the security needle. Use it for compliance, investor calls, and audit committees.

Remediation Retest

Once your team has fixed an issue, we verify the fix. No extra fee, no scheduling friction. You get confirmation, not assumptions.

Looking for Continuous Testing?

For applications under active development, point-in-time testing closes one window and opens another. Raxis Attack delivers the same depth of testing on a continuous basis, with unlimited engagements through Raxis One.

How a Single Quote Dumped an Entire E-Commerce Database

Raxis Hack Stories

Our stories are based on real events encountered by Raxis engineers. Some details have been altered or omitted to protect customer identities.

While running through our usual array of unauthenticated web app checks, our pentester discovered that a small e-commerce site’s login prompt allowed CTF-like SQL injection. Emboldened by this success, he successfully accessed multiple accounts with ’ OR 1=1-. During this process he successfully gained access to administrator accounts.

While accessing user accounts was fun, he decided to dig deeper using SQLMap. He crafted a request file with the vulnerable login parameters and ran sqlmap -r login.txt. SQLMap worked its magic, revealing the application’s databases. With a few more commands, he was able to enumerate tables, columns, and ultimately download the entire database, including encrypted passwords and personal information for all users, from admins to customers.

The ease with which SQLMap extracted sensitive data, while making for a great pentest report, was concerning for our customer. As a critical finding, our pentester alerted our customer immediately with remediation steps that could, and did, take place within the time of the test, allowing our pentester to confirm remediation of this critical issue all within the testing timebox. Mind you, he did login to the web application as the CEO using the information he had gathered while they were remediating the issue, just to get a nice screenshot for the proof of concept on his report.

Web Application Penetration Testing for Regulatory Compliance

Web application testing is required (or expected) under most major frameworks. Raxis engagements satisfy the testing requirement and produce audit-ready documentation through Raxis One.

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PCI DSS 4.0

Satisfies Requirement 6.5 (testing for application vulnerabilities) and Requirement 11.4 (penetration testing) for in-scope web applications.

HIPAA Security Rule

Supports the technical evaluation requirement under §164.308(a)(8) for systems handling ePHI, including patient portals and provider applications.

SOC 2

Provides auditor-ready evidence for Common Criteria CC4.1 (monitoring controls) and CC7.1 (vulnerability management).

GLBA Safeguards Rule

Supports the periodic penetration testing requirement for financial institutions handling NPI through web applications.

ISO/IEC 27001:2022

Aligned with Annex A.8.29 (security testing in development and acceptance) and A.5.7 (threat intelligence informed testing).

HITRUST

Web application testing maps to HITRUST CSF controls 10.b and 10.m for organizations in healthcare and adjacent regulated industries.

FAQ: Web Application Penetration Testing

What is web application penetration testing?

Web application penetration testing is a manual security assessment in which engineers attempt to exploit vulnerabilities in your web application the way an attacker would. It goes beyond automated scanning to find business logic flaws, broken access control, authentication weaknesses, and chained exploits that scanners can't reason about.

How is this different from a vulnerability scan?

A vulnerability scan compares your application against a database of known issues. A penetration test exploits those issues, chains them together, and finds the ones that aren't in any database. Scanners are useful inputs to a pentest. They are not a substitute for one.

What kinds of web applications can Raxis test?

Customer-facing portals, internal applications, SaaS platforms, single-page apps, server-rendered apps, multi-tenant systems, applications with complex role hierarchies, applications behind SSO, and applications that depend on third-party APIs. We've tested in nearly every framework on the market.

Black box, grey box, or white box. Which should I choose?

Grey box is the most common and usually the most useful. You provide test accounts at each role level, and we work from there. Black box is closer to a real external attack but slower. White box (with source code review) goes deepest and is most valuable for high-stakes or pre-launch applications.

Will testing affect production users?

We work with you to scope around production safety. Most engagements run against staging or pre-production environments that mirror production. When production testing is required, we coordinate timing, throttle our activity, and avoid destructive techniques unless explicitly authorized.

What deliverables do I receive?

A detailed technical report with proof-of-concept evidence and remediation guidance, an executive summary suitable for board and audit use, real-time findings in the Raxis One portal during the engagement, and a remediation retest at no extra charge once your team has implemented fixes.

How often should we test our web applications?

At minimum, annually and after any major release, framework upgrade, or change to authentication or authorization. For applications under continuous development, a one-time-per-year cadence leaves long windows of unvalidated change. Continuous testing through Raxis Attack closes that gap.

Can Raxis test SaaS applications with multiple customer tenants?

Yes. Multi-tenant testing is one of our specialties. We validate that customer A cannot see, modify, or impact customer B's data through any path, including direct object references, shared resources, indirect channels, and abuse of administrative interfaces.

Does this include API penetration testing?

Web application engagements cover the APIs your application directly depends on. For dedicated, comprehensive API testing across REST, GraphQL, SOAP, and gRPC interfaces, including ones not exposed through a web UI, see our API Penetration Testing service.

How long does a web application penetration test take?

Most engagements run one to two weeks of active testing depending on the size of the application, the number of roles, and the complexity of its workflows. Critical findings reach you in real time through Raxis One, and the full report follows within days of testing completion.

How much does a web application penetration test cost?

Cost scales with the size and complexity of the application: the number of roles, workflows, and endpoints in scope is the biggest driver. Be wary of quotes that seem too low; they usually mean an automated scan with a pentest label. Contact us for a quote scoped to your application.

Who performs the testing?

Senior US-based Raxis engineers holding certifications such as OSCP and OSWE. Your test is never outsourced, and the engineer who exploits your application is the same person who writes your report and walks you through it.

Can you test applications behind SSO or MFA?

Yes. We regularly test applications behind SAML, OAuth, and OIDC single sign-on as well as multi-factor authentication. We coordinate test accounts and access during scoping, and the SSO and MFA flows themselves are part of what we attack.

Do you test AI features like chatbots and LLM integrations?

AI features in scope are tested as part of the application, including prompt injection and data exposure through LLM integrations. For deep testing of AI systems themselves, see our AI and LLM Penetration Testing service.

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Ready to Find What Scanners Miss?

Real engineers, real exploitation, real-time findings. Talk to a Raxis penetration tester about scoping a web application engagement that fits your application, your timeline, and your release cadence.

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