How Can a SaaS Company Prepare for a Customer Requested Penetration Test?
Has an enterprise customer asked your SaaS company for a penetration testing report? Learn how to define the right scope, prepare access, test APIs and applications, and avoid gaps that can delay customer onboarding.
How Can a SaaS Company Prepare for a Customer Requested Penetration Test?
An enterprise customer has asked your SaaS company for a recent penetration testing report.
The sales team needs the report. The security team needs the right scope. The engineering team needs to provide access. And the customer expects meaningful security evidence.
This creates an important question:
How should a SaaS company prepare for a customer requested penetration test?
The goal is not simply to obtain a VAPT report.
The assessment should cover the parts of your SaaS platform that the customer actually relies on, including applications, APIs, authentication, authorization, business logic and, where relevant, cloud infrastructure.
A poorly defined scope can leave important attack surfaces untested and create problems during enterprise security review.
Why Do Enterprise Customers Request a Penetration Testing Report?
Enterprise customers need confidence that a SaaS platform has been independently assessed for exploitable security weaknesses.
A customer may request penetration testing as part of:
• Vendor security assessment
• Enterprise procurement
• Security questionnaire
• Third party risk assessment
• Compliance requirements
• Customer onboarding
• Contract approval
The request may also specify requirements such as testing dates, scope, remediation status, severity levels or an independent security provider.
Before starting the assessment, the SaaS company should understand exactly what the customer expects to see in the final report.
What Should Be Included in a SaaS Penetration Testing Scope?
The scope should represent the actual customer facing attack surface.
Depending on the SaaS architecture, this may include:
• Web application
• Public APIs
• Authenticated APIs
• Administrative portals
• Customer portals
• User roles
• Authentication mechanisms
• Authorization controls
• Multi tenant functionality
• Business critical workflows
• Cloud infrastructure
• Relevant integrations
Do not define the scope only around the main website.
If customers use APIs to access business functions, those APIs should also be considered.
If multiple customers share the same SaaS environment, tenant isolation should also be assessed.
A strong scope helps ensure that the final penetration testing report is relevant to the enterprise customer's security review.
Which SaaS Assets Should Be Tested Before Enterprise Onboarding?
Start by mapping how customers interact with the platform.
For example:
Customer Browser → Web Application → APIs → Application Services → Database
There may also be:
Mobile Application → APIs
Third Party Integration → APIs
Cloud Services → Application Infrastructure
Each connection can introduce additional security considerations.
The assessment should therefore identify the assets that are actually exposed to customers, partners and external users.
NuageSEC's VAPT services cover SaaS platforms, web applications, APIs, cloud environments, infrastructure and related technology assets.
How Should a SaaS Company Prepare User Accounts for Testing?
Authenticated testing is important for SaaS applications because many vulnerabilities appear only after login.
Prepare appropriate test accounts representing different permission levels.
For example:
• Standard user
• Manager
• Administrator
• Privileged user
• Read-only user
Where applicable, create accounts belonging to different tenants.
This allows the security team to test whether users can access functionality or data outside their intended permissions.
The objective is to validate both authentication and authorization rather than simply checking whether the login page is secure.
How Should Multi Tenant SaaS Security Be Tested?
If your SaaS platform serves multiple customers from a shared environment, tenant isolation should be explicitly considered in the penetration testing scope.
The critical question is:
Can User A access data belonging to Tenant B?
Testing can examine:
• Object-level authorization
• BOLA
• IDOR
• Role-based access
• API authorization
• Direct object manipulation
• Cross-tenant data access
• Administrative permissions
For example, changing an object identifier in an authenticated API request should not allow one customer's account to retrieve another customer's records.
This type of testing is particularly important for SaaS platforms handling sensitive customer or business data.
Does the Customer Requested Pentest Need API Security Testing?
If APIs support your SaaS product, excluding them from the assessment can leave a significant part of the attack surface untested.
API testing can examine:
• Authentication
• JWT and token security
• Authorization
• BOLA
• Rate limiting
• Sensitive data exposure
• Business logic
• API inventory
• Input validation
• Third party integrations
NuageSEC provides API Security Testing for REST, GraphQL, SOAP and gRPC APIs, with testing covering authentication, authorization, business logic and data protection.
What Should a SaaS Company Give the Penetration Testing Team?
Prepare the information required to perform the assessment efficiently.
This can include:
• Application URLs
• API documentation
• Test accounts
• User roles
• API credentials where required
• Test environment details
• Important workflows
• Scope boundaries
• Relevant integration information
• Customer security requirements
If the enterprise customer has provided a security testing requirement, share it during scoping.
This prevents an avoidable situation where testing is completed but an asset or requirement expected by the customer was outside the original scope.
When Should a SaaS Company Start the Penetration Test?
Do not wait until the final days of enterprise procurement.
Start early enough to allow time for:
Testing → Findings → Remediation → Retesting → Final Report
If critical or high-risk vulnerabilities are discovered, engineering teams may need time to implement fixes before the customer receives the final assessment.
Starting the assessment early gives the SaaS company an opportunity to address security findings without unnecessarily delaying customer onboarding.
What Happens If the Penetration Test Finds Vulnerabilities?
Finding vulnerabilities does not automatically mean the SaaS platform cannot be sold to an enterprise customer.
The important factors are:
• Severity
• Exploitability
• Business impact
• Affected assets
• Remediation status
• Retesting results
Critical findings should be prioritized immediately.
After remediation, retesting can verify whether the identified vulnerability has been properly resolved.
The final report should clearly distinguish between identified vulnerabilities, remediation status and validated fixes.
What Should an Enterprise Customer See in the Final Pentest Report?
A professional penetration testing report should clearly document the assessment.
Important elements can include:
• Executive summary
• Assessment scope
• Testing dates
• Methodology
• Tested applications and APIs
• Vulnerability severity
• Technical findings
• Proof of concept
• Business impact
• Remediation recommendations
• Retesting results
The report should allow the customer's security team to understand what was tested and whether identified vulnerabilities were addressed.
https://www.nuagesec.com/resources/cyber-security-guides/penetration-testing-services-vapt-guide
How Can a SaaS Company Avoid Delays During Customer Security Review?
Three areas commonly determine whether the assessment moves smoothly:
First, define the scope correctly.
Second, provide the required access and documentation before testing begins.
Third, leave sufficient time for remediation and retesting.
The security assessment should also align with the customer's actual requirements.
For example, if the customer expects API testing but the engagement only covered the web application, the company may still have to arrange additional testing.
A clear scope at the beginning reduces this risk.
Should You Choose a Basic Vulnerability Scan or a Penetration Test?
A vulnerability scan can identify known technical weaknesses, but enterprise security reviews may require deeper validation.
A penetration test can assess whether vulnerabilities are actually exploitable and examine areas such as:
• Authorization
• Tenant isolation
• Business logic
• Privilege escalation
• Authentication
• API security
• Application-specific attack paths
For SaaS platforms, these areas can be critical because security issues may depend on how customers, roles, APIs and workflows interact.
NuageSEC follows a manual-first approach supported by automated security testing to identify and validate vulnerabilities across modern application environments.
How Much Does a Customer Requested SaaS Pentest Cost?
The cost depends on the scope requested by the customer and the complexity of the SaaS environment.
Factors can include:
• Number of applications
• API endpoints
• User roles
• Authentication complexity
• Multi tenant architecture
• Business workflows
• Cloud infrastructure
• Testing depth
• Compliance requirements
• Retesting
A customer requested penetration test should therefore be scoped around the actual environment rather than selected solely by price.
A smaller assessment may be appropriate for a limited SaaS application, while a complex multi tenant platform may require broader application, API and infrastructure testing.
https://www.nuagesec.com/resources/cyber-security-guides/penetration-testing-services-vapt-guide
Is Your SaaS Company Ready for a Customer Requested Penetration Test?
If an enterprise customer has asked for a penetration testing report, the next step should be defining the right assessment scope.
Review your:
• Web applications
• APIs
• User roles
• Authentication
• Authorization
• Tenant isolation
• Business logic
• Cloud environment
• Customer security requirements
Then ensure the assessment allows enough time for testing, remediation and retesting.
The objective is simple:
Give your enterprise customer meaningful evidence that the SaaS platform has been professionally assessed.
If you have received a customer security requirement or need help defining the right SaaS penetration testing scope, NuageSEC can help assess the relevant application, API and infrastructure attack surface.
REQUEST A SAAS PENETRATION TESTING ASSESSMENT.
https://www.nuagesec.com/contact
