Service

Web Application Security

DarkLayer Security provides comprehensive web application security assessments covering authentication, authorization, session security, business logic, APIs, data protection, and application security controls.

Request a Web Application Security Assessment All services
The problem

Why this assessment matters

Web applications sit at the front door of most businesses. A single broken access-control check, an overlooked injection point or a flawed password-reset flow can expose customer data, internal systems and revenue. Automated scanners only surface a fraction of these issues — the exploitable weaknesses are usually found in the logic between the pages, not the pages themselves.

Scope

What We Test

Typical coverage for this assessment, tailored to your system during scoping.

  • Authentication
  • Authorization
  • IDOR / BOLA
  • Injection (SQL, NoSQL, command, template)
  • Cross-Site Scripting (XSS)
  • SSRF
  • File upload
  • Session management
  • Business logic
  • Sensitive information exposure
  • Security configuration
Methodology

How the Assessment Runs

A consistent six-stage process — every stage produces something you can use.

  1. Discover

    Map the application: routes, roles, parameters, states and entry points. Review client-side code, documentation and architecture notes.

  2. Assess

    Test each attack surface systematically — authentication, authorization boundaries, input handling, session lifecycle and business workflows.

  3. Validate

    Prove exploitability with controlled, non-destructive proof-of-concept requests. Separate real weaknesses from scanner noise.

  4. Report

    Document each confirmed finding with reproduction steps, evidence, severity, business impact and specific remediation guidance.

  5. Remediate

    Work with your team to clarify root causes and practical fixes — not generic checklist advice.

  6. Retest

    Verify fixes against the original findings and issue an updated report so you can close items with confidence.

Example outcomes

Typical Findings

Realistic issue classes commonly discovered during this type of assessment. Your results depend on your system — we do not imply guaranteed findings.

  • Broken object-level or function-level authorization
  • Injection flaws in search, filters and admin features
  • Session fixation or insufficient session invalidation
  • Account-takeover paths via password reset or OTP flows
  • Business logic abuse (price, quantity, state transitions)
  • Sensitive data exposed in responses, errors or client-side code
  • Misconfigured security headers, CORS and error handling
  • Privilege escalation between roles
What you receive

Deliverables

Everything needed to understand, prioritize and fix what we find.

  1. Executive summary with risk context for leadership
  2. Technical findings with reproduction steps and evidence
  3. Severity ratings with clear rationale
  4. Prioritized, actionable remediation guidance
  5. Raw request/response evidence for engineering teams
  6. Retest report after remediation
Attack surface

Where Web Application Security Fits in Your Attack Surface

The shared, data-driven attack-surface map — Web Application Security is emphasised automatically. Select any node to see its assessment path, related systems and security objective.

Interactive 3D map of the security attack surface — Web, API, Mobile, Thick Client, Cloud, Internal, External, AI and Blockchain. Select a node to explore a service.

Interactive 3D map of the security attack surface. Select a node to see the service description, assessment path and related systems. A static list of all services is provided below.
  1. Discover
  2. Map
  3. Assess
  4. Validate
  5. Correlate
  6. Risk
  7. Evidence
  8. Remediate
  9. Retest
  • Assessment / attack path
  • Application / API
  • Identity / security core
  • Defensive
  • Critical risk
Fit

Who Needs This

Organizations launching or maintaining customer-facing web applications

Teams preparing for compliance or vendor security reviews

Companies handling regulated or sensitive customer data

Organizations that need evidence of testing before a major release

Any team that relies on automated scanning alone today

Questions

Frequently Asked Questions

How long does a web application assessment take?

It depends on application size, number of roles and feature depth. A focused assessment of a typical application usually runs over one to three weeks, while large multi-role platforms take longer. We scope timelines before work begins so you know exactly what to expect.

Do you use automated scanners?

Automated tools are used to increase coverage during discovery, but they are not the assessment. The majority of value comes from manual testing of authorization, business logic and chained attack paths that scanners cannot reason about.

Will testing disrupt production systems?

Testing is performed non-destructively by default. We agree on scope, environments, rate limits and excluded actions up front, and we avoid destructive payloads. Production testing is possible with explicit written approval and agreed safety controls.

What do you need from us to start?

Typically: test accounts for each role, application URLs or a staging environment, documentation of intended workflows, and a point of contact for questions. Credentials are handled through your agreed secure channel.

Ready to test your application?

Start a scoping conversation about web application security for your systems.

Request a Security Assessment Talk to a Security Expert