Web Application Penetration Testing Services
Understand security risk in a customer-facing web application before a release, customer review or major platform change. SignX supports black-box, grey-box and white-box testing, with the exact access, targets and safety boundaries defined for each engagement.
- Give decision-makers a clearer view of application risk
- Help engineering teams prioritize confirmed weaknesses
- Support release planning and customer security conversations
For teams that need a clearer view of application risk
The engagement is intended for product and engineering teams that need a defined, time-bound assessment of a web application. SignX supports remote security assessments for international clients, subject to technical feasibility and agreed engagement scope.
Product launches
Teams preparing a public launch or a material release with new authentication, data or transaction workflows.
SaaS security reviews
Businesses responding to customer security requirements or reviewing role and tenant boundaries.
Sensitive portals
Organizations operating authenticated portals, administrative workflows or applications that handle sensitive information.
Inherited applications
Engineering teams assessing a deployed application before modernization, integration or a change of ownership.
Security evidence that supports product decisions
A scoped assessment helps business and engineering owners understand where attention is needed without promising that every weakness will be found.
Prioritized risk
Separate validated findings from assumptions so remediation effort can focus on the agreed application boundary.
Engineering clarity
Provide evidence and practical context that developers can use when planning fixes.
Release confidence
Inform launch, change and customer-review decisions with a time-bound assessment.
Web application testing modes
SignX's in-house security team supports these testing modes. The selected mode and access level remain engagement-specific.
Black-box testing
Assessment from an external perspective using only the access and information agreed with the client.
Grey-box testing
Assessment with limited approved context or test access to examine selected authenticated workflows and boundaries.
White-box testing
Assessment with broader approved technical context and access. Source-code review is not included.
Delivered by SignX's in-house security team
Web assessment activities
These activities are available capabilities. The written scope and quotation determine which activities are included in a specific engagement.
Authentication security
Assessment of approved authentication workflows and controls.
Session management
Assessment of session creation, handling and lifecycle behavior within scope.
Role and tenant authorization
Assessment of approved role-based and tenant access boundaries.
Input and file handling
Assessment of input-validation and file-handling security controls.
Business logic
Assessment of approved application workflows for security-relevant misuse.
Application configuration
Assessment of security-relevant application configuration within the authorized boundary.
Available activities are selected in the written scope and quotation
Weaknesses that deserve more than a scanner result
The final scope determines what is tested. These areas show the kinds of application risk a properly authorized engagement may examine.
Authentication and recovery
Login, session, password-reset and account-recovery behavior that may expose user accounts.
Authorization boundaries
Access between users, roles, administrative functions or tenant-specific objects.
Input and file handling
Injection, unsafe processing and application behavior around untrusted input or uploaded files.
Session behavior
Token handling, logout, expiry and browser-side controls across authenticated workflows.
Business-flow abuse
Actions that can be repeated, reordered or performed outside the sequence intended by the product.
Configuration exposure
Security settings, verbose errors and unintended information that make exploitation easier.
A defined boundary before testing begins
Black-box, grey-box or white-box testing is selected during scoping. Targets, roles, environments, permitted techniques and escalation contacts are agreed in writing. Supporting APIs are included only when expressly agreed. Source-code review is not included in this service.
Public application paths
Unauthenticated pages, exposed workflows, input surfaces and configuration visible from the agreed environment.
Authenticated roles
Approved test accounts and role boundaries, including user-to-user or user-to-administrator access where supplied.
Application workflows
Session handling, business sequences, file operations and sensitive actions selected during scoping.
Explicit limitations
Excluded systems, prohibited actions, testing windows, data rules and any part of the architecture that remains untested.
From written scope to engineering readout
A practical sequence designed to protect the target environment and keep findings useful to both business and technical owners.
Scope and authorize
Confirm ownership, targets, test modes, exclusions, accounts and safety rules.
Prepare access
Review supplied architecture context, test data and approved role credentials.
Assess
Exercise agreed application paths with appropriate discovery and manual analysis.
Validate
Confirm suspected weaknesses using the least disruptive approved method.
Report and read out
Prioritize findings, explain limitations and review remediation with the team.
Agree retesting
Retesting arrangements, including scope, timing and any applicable fees, are agreed as part of the project quotation.
Standard assessment deliverables
Seven standard deliverables for each scoped assessment
Severity model: CVSS 4.0 + Business Context. CVSS v4.0 is applied to technical vulnerabilities when it is suitable and supported by the available evidence. Technical severity, affected assets and exploit conditions are recorded separately from business impact, asset criticality and remediation priority. When CVSS is unsuitable or the evidence is insufficient, the report uses a reasoned qualitative severity and clearly states its basis.
- Executive summary for business and technical stakeholders
- Documented assessment scope, exclusions, environments, dates and testing limitations
- Validated technical findings with appropriately redacted supporting evidence
- Severity ratings and business-risk prioritization using the approved CVSS 4.0 + Business Context model where applicable
- Actionable remediation recommendations
- Technical assessment report and client readout session
- Retesting arrangements documented according to the project's agreed scope and quotation
Questions before an assessment
Clear boundaries are part of the work. These answers avoid guarantees and keep the exact engagement dependent on written scope.
Which web application testing modes does SignX support?
SignX's in-house team supports black-box, grey-box and white-box web application testing. The proposal defines the selected mode, access level, target environment and limitations. Source-code review is not included in this service.
Can testing cover authenticated and role-based workflows?
It can if the client provides approved test accounts, roles and boundaries. Tenant separation and role authorization should not be presented as tested unless they are explicitly in scope.
Can a production application be tested?
Only under written authorization and agreed safety controls. A staging environment may be preferable where testing could affect availability, data or users. The correct environment is a scoping decision.
Does an assessment guarantee that the application is secure?
No. A time-bound assessment reduces uncertainty within a defined scope. It cannot prove that no vulnerability exists or guarantee prevention of future incidents.
Connect assessment findings to the wider product
Existing SignX software services remain the primary offer. These links provide context for engineering and remediation work without implying bundled security testing.
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Explore serviceDiscuss your web application assessment
Share the application type, environment, roles and reason for the review. We will use that information to prepare a written scope and quotation.