Skip to main content
    Price CalculatorSign in

    SaaS Penetration Testing

    Penetration testing built for SaaS products. We test the things that matter most to a multi-tenant application: tenant isolation, access control, API security, and the business logic attackers abuse, so you can prove your product is safe to enterprise buyers and auditors.

    Selling SaaS to serious customers means answering hard security questions. Procurement teams ask for a recent penetration test, and SOC 2 or ISO 27001 auditors expect one. More importantly, a single tenant-isolation flaw or broken authorization check can expose one customer's data to another, which is the kind of incident that ends contracts.

    Budget Security runs SaaS penetration tests that focus on the risks unique to multi-tenant cloud products. Every engagement is performed by OSCP and OSWE certified testers, scoped online, and priced from EUR 849 per day. You get a fixed price up front and an audit-ready report you can share directly with customers and auditors.

    Our SaaS testing methodology

    We follow OWASP, the OWASP API Security Top 10, and PTES, with a deliberate focus on authorization and tenant boundaries. We create multiple test accounts across tenants and roles, then attempt to cross those boundaries: accessing another tenant's data, escalating privileges, and abusing business logic. Each finding ships with CVSS scoring, reproduction steps, and a clear fix.

    What a SaaS penetration test covers

    • Multi-tenant isolation: attempts to access, modify, or leak data across tenant boundaries
    • Authentication and session security: login flows, password reset, MFA enforcement, and token handling
    • Authorization: broken access control, IDOR, privilege escalation, and role boundary bypasses
    • API security: the OWASP API Top 10, including broken object-level authorization and excessive data exposure
    • Business-logic abuse: subscription, billing, and workflow flaws that automated tools cannot find
    Request early accessPenetration test cost calculator

    Other penetration testing services

    All penetration testing servicesWeb Application Penetration TestingNetwork Penetration TestingAPI Penetration TestingMobile Application Penetration TestingCloud Penetration Testing

    SaaS Penetration Testing — FAQ

    What is SaaS penetration testing?
    SaaS penetration testing is a manual security assessment of a software-as-a-service product, with extra focus on the risks of multi-tenant architecture: tenant isolation, access control, API security, and business logic. A tester attempts to break those boundaries the way a real attacker or malicious customer would.
    Why do SaaS companies need penetration testing?
    Two reasons. First, enterprise customers and compliance frameworks like SOC 2 and ISO 27001 expect a recent independent pentest before they trust you with their data. Second, multi-tenant products carry isolation and authorization risks that, if exploited, can expose one customer to another. A pentest catches both the commercial blocker and the technical risk.
    What does a SaaS penetration test focus on?
    Beyond standard web and API testing, a SaaS pentest concentrates on tenant isolation (can one customer reach another's data), authorization boundaries across roles and plans, and business-logic abuse in flows like billing, invitations, and provisioning. These are the failure modes that matter most for a multi-tenant product.
    How much does a SaaS penetration test cost?
    SaaS penetration testing with Budget Security starts at EUR 849 per day. The total depends on the number of applications, APIs, roles, and tenants in scope. Enter your scope in our online cost calculator to see a fixed price before you commit, with no sales calls.
    How long does a SaaS penetration test take?
    A typical single-product SaaS penetration test of the application and its API runs three to five testing days. Broader scopes with multiple roles, tenants, or integrations take longer. Most engagements begin within days, and reports arrive through your dashboard as testing completes.
    How do I book a SaaS penetration test?
    Request access, add your SaaS application and API as assets, scope the test in the platform, and book online. You can also use our penetration test cost calculator for a quick pricing estimate first.