Web Application Penetration Testing in United KingdomCREST-accredited. NCSC CAF and UK GDPR aligned.
SecureLayer7 runs web application pentests for UK enterprises whose audit boundary spans NCSC CAF, UK GDPR, FCA Operational Resilience, PCI DSS, or ISO/IEC 27001. CREST-accredited reports, UK-governed engagement terms, evidence packs your auditor accepts on first review.
Research-driven testing. Audit-ready reports.
Full attack surface coverage
Authentication, business logic, API endpoints, session management, not just OWASP Top 10.
Working proof-of-exploit
Every finding includes a reproducible PoC and video, developer-ready, not just a CVSS score.
Re-test included
We verify your fixes at no extra cost. One engagement, closed-loop, not a revolving invoice.
The window from vulnerability discovery to exploitation has gone from weeks to hours.
Trusted by security teams across Fintech, SaaS & Education, Enterprise & Telecom, Security & Critical Infrastructure
Scope
Every attack surface. Not just OWASP Top 10.
Authentication, authorisation, business logic abuse, API misuse, and session handling tested against the attack patterns the NCSC and ICO flag most often in UK breach notifications.
Authentication & Session
Login bypass, session fixation, token prediction, password reset flaws, MFA weaknesses.
Business Logic Flaws
Price manipulation, privilege escalation, workflow abuse, unique to your application.
API & GraphQL
REST and GraphQL endpoints, mass assignment, IDOR, broken object-level authorization.
Injection & Execution
SQLi, XXE, SSTI, command injection, deserialization, tested manually with chained exploits.
Client-Side Attacks
XSS, CSRF, clickjacking, postMessage abuse, DOM-based vulnerabilities.
Infrastructure & Config
Exposed admin panels, misconfigured headers, verbose error messages, third-party components.
How we pentest
Every finding verified. Eight phases, closed-loop.
Threat-modelled to the patterns UK regulators see most: open banking API scope abuse under PSD2, GDPR personal-data exposure via IDOR, FCA-regulated transaction-flow tampering, and NHS England DSPT control gaps.
Reconnaissance & Enumeration
We map your real attack surface, subdomains, exposed endpoints, tech stack, third-party integrations, and anything a motivated attacker would find before engaging.
Scoping & Threat Modelling
We build a threat model specific to your application, not a generic checklist. High-value targets, user roles, and probable attacker paths are defined before a single test runs.
Static Analysis
Client-side code, JavaScript bundles, and API schemas are reviewed for logic leaks, hardcoded secrets, and insecure patterns that dynamic testing alone won't surface.
Dynamic Analysis
Active testing against your running application, authentication bypass, session hijacking, input fuzzing, and flow abuse that requires a human attacker, not a scanner.
App & API Analysis
Every REST and GraphQL endpoint tested for IDOR, mass assignment, broken object-level auth, rate limiting gaps, and injection, with chained exploit scenarios, not isolated CVEs.
Vulnerability Analysis
Findings are correlated, chained into real exploit paths, and assigned CVSS scores with business impact context, so your team knows what to fix first and why.
Remediation Guidance
Remediation guidance written for developers, not auditors. Code-level fix examples, library recommendations, and configuration changes, not a list of CWEs to Google.
Patch Verification
Every finding is re-tested after your team ships fixes, at no extra cost. You get written confirmation that each vulnerability is resolved, not just closed on a spreadsheet.
Deliverables
A report your auditor accepts. Your developers can act on.
Reports written for UK auditors. NCSC CAF v3.2 outcome mapping, UK GDPR Article 32 evidence, FCA Operational Resilience control coverage, ISO/IEC 27001 audit input. Every finding ships with a working PoC and code-level fix guidance.
CREST-accredited. Accepted by:
Reproducible PoC + Video
Every finding ships with a working exploit and screen recording. Your developers see exactly what an attacker sees, no guesswork, no chasing us for clarification.
Code-Level Fix Guidance
Remediation written for engineers, not auditors. Specific code changes, library recommendations, and config fixes, not a list of CWEs to Google.
Re-test Included
Every finding is re-tested once your team ships the fix, at no extra cost. One engagement, closed loop. You get written confirmation, not just a closed ticket.
Compliance-Ready Report
CREST-accredited report accepted by SOC 2, ISO 27001, PCI DSS, and HIPAA auditors out of the box. No re-scoping, no addenda, no extra calls with your audit team.
Accreditations
Built for United Kingdom engagements
What changes when we deliver here.
Compliance scoping
CREST member firm, accepted by UK regulators and auditors
Compliance scoping
NCSC CAF v3.2 outcome mapping baked into scope
Regulatory framework
UK GDPR Article 32 evidence on every finding
Compliance scoping
PSD2 open-banking and FCA Operational Resilience scoping
Local pricing
GBP pricing, UK-governed MSA, GDPR-compliant data handling
Questions UK security buyers ask first.
Are reports accepted under NCSC CAF v3.2 outcome assessment?
Yes. Findings map to CAF outcomes (B2 Identity & Access, B3 Data Security, B4 System Security). Evidence formatted for OES and CNI assessor review.
Do you support PSD2 open-banking API scoping?
Yes. We test Open Banking Implementation Entity standards for TPP authorisation and PSU consent flows. Covers SCA exemption abuse and OAuth scope manipulation.
What about UK GDPR Article 32 evidence?
Every finding carries an Article 32 'appropriate technical measures' impact note. Chains reaching personal data flag as Article 33 notifiable-breach precursors.
Are you a CREST member firm?
Yes. CREST member firm under the UK scheme; reports accepted by UK regulators including the ICO, NCSC, and FCA.
Delivery in United Kingdom
CREST-accredited. NCSC CAF and UK GDPR aligned.
Engagement terms governed by English law. Reports formatted to NCSC CAF v3.2 outcomes and UK GDPR Article 32 evidence templates. PSD2 open-banking scoping included.
- Direct line
- +44-20-0000-0000
- Office
- London, United Kingdom
Frameworks scoped: CREST · NCSC CAF · UK GDPR · PCI DSS · ISO 27001.
See What a Finding Actually Looks Like
Our sample report shows a real WAPT engagement, working PoC, code-level fix guidance, and the CREST-accredited format your auditors expect.