In a SaaS product, the single most important security boundary is the one between your tenants — and it is enforced entirely in software you wrote. Our SaaS penetration testing puts that boundary under real pressure: we create multiple tenants and roles and try to read, write and escalate across them, alongside testing your APIs, SSO and billing logic.
Using two or more test tenants, we hunt the flaws that are unique to multi-tenancy: cross-tenant IDOR, RBAC gaps that let one role act as another, and shared-resource leaks. We also probe the commercial logic — plan limits, seat counts and billing — that attackers abuse to escalate access or avoid paying.
For SaaS, a single isolation flaw is an existential event: one tenant reading another's data is a breach of every customer at once, and enterprise buyers now demand independent proof it cannot happen. A clean automated scan says nothing about whether your tenant boundary actually holds.
What we test
Tenant isolation and cross-tenant access
Role-based access control (RBAC) enforcement
Cross-tenant IDOR and data leakage
Authentication, SSO and session security
API and integration security
Subscription, billing and plan-limit logic
Common vulnerabilities we uncover
Cross-tenant data access (broken isolation)
Privilege escalation across roles
IDOR exposing other tenants' records
SSO and token-handling weaknesses
Rate-limit and plan-restriction bypass
Injection and business-logic abuse
Our methodology
Scoping & rules of engagement. We agree objectives, targets and boundaries for your saas penetration testing, so testing is safe, authorized and focused on what matters to your business.
Reconnaissance & mapping. We enumerate the full attack surface in scope, building a complete picture before any exploitation begins.
Manual exploitation. Our senior testers chain vulnerabilities by hand — going far beyond automated scanners — to prove real, demonstrable impact.
Analysis & reporting. Every finding is triaged, risk-rated with CVSS and written up with a copy-paste reproduction and clear remediation.
Remediation support & free retest. We support your team through the fixes and retest the remediated issues to confirm they are genuinely closed.
Tools & techniques
We work with least two provisioned tenants and a matrix of roles, driving Burp Suite Professional and custom tooling to replay each tenant's requests in another's session and context. Every object reference, API endpoint and SSO assertion is tested for cross-tenant leakage and privilege escalation.
We treat the API as a first-class surface, since most SaaS logic lives there, and we chain findings — a leaked identifier plus a missing server-side check — into a demonstrable cross-tenant compromise rather than a theoretical one.
When you need this engagement
You run a multi-tenant SaaS product
An enterprise prospect requires a pentest before buying
You are pursuing SOC 2 or ISO 27001
You have added roles, SSO or a new tenant model
You handle customer data across many organisations
What you receive
Executive and technical report with evidence
Tenant-isolation and RBAC findings prioritised
Per-finding reproduction and remediation
SOC 2 / ISO 27001-relevant guidance
Attestation letter for enterprise buyers
Complimentary retest after fixes
What’s included in your report
Every saas penetration testing engagement concludes with a comprehensive, board-ready report and a working session to walk your team through it. Your report includes:
An executive summary with overall risk posture for non-technical stakeholders
Detailed technical findings, each with a step-by-step, copy-paste reproduction
CVSS v3.1 severity ratings and business-impact context for every issue
Prioritized, actionable remediation guidance your engineers can apply directly
A complimentary retest to confirm fixes and update finding status
A formal attestation letter for customers, auditors and compliance programs
Standards & frameworks
OWASP Top 10OWASP ASVSSOC 2ISO 27001
Outcomes you can expect
After your saas penetration testing, you will have clear, evidence-based visibility into your real security risk — not a scanner’s guesswork. You will know exactly which weaknesses an attacker could exploit, what the business impact would be, and the precise steps to fix them in priority order. Teams use our findings to close critical gaps, satisfy customer and regulator security requirements, and demonstrate due diligence to their board. With a complimentary retest included, you also get documented proof that the issues are genuinely resolved.
Engagement details & logistics
Every saas penetration testing starts with a short, no-obligation scoping call to understand your goals, environment and constraints, followed by a fixed-price proposal and a clear statement of work. Most engagements are delivered fully remotely, with on-site work arranged where it genuinely adds value. Throughout testing we maintain an agreed communication cadence and escalate any critical, high-impact finding to you immediately rather than waiting for the final report. All work is performed under a signed NDA with strict data-handling controls, using safe, non-disruptive techniques and carefully coordinated rules of engagement to protect your production systems. On completion you receive your report and a walkthrough session, followed by a complimentary retest once your fixes are in place. Typical engagements are booked one to three weeks in advance, and urgent or pre-deadline testing can often be accommodated — just ask at hi@agentoffense.com.
Why organizations choose AgentOffense
Our saas penetration testing is delivered by senior offensive-security engineers who test the way real attackers do — manually, creatively and with a relentless focus on proving genuine, demonstrable impact. Here is what sets our engagements apart:
Manual, exploit-driven testing that chains vulnerabilities the way a real attacker would, going far beyond what automated scanners can find.
Reproducible proof for every finding, with copy-paste reproduction steps your engineers can follow and independently verify.
Honest severity calibration so you invest in fixing what genuinely matters and avoid wasting effort on false positives and noise.
Clear, business-focused reporting that speaks to engineers and executives alike, tying every issue to real-world impact.
A complimentary retest included, so you get documented proof that your fixes actually close the attack path.
Responsible, collaborative delivery with a named point of contact and secure handling of all data throughout the engagement.
Explore related services
SaaS Penetration Testing is frequently scoped alongside our other offensive-security services for broader coverage. Explore related engagements that complement it:
Web Application Penetration Testing — Manual web application penetration testing against the OWASP Top 10 and business-logic flaws. Exploit-driven testing with…
API Penetration Testing — REST and GraphQL API penetration testing against the OWASP API Top 10 — BOLA, BFLA, mass…
Every saas penetration testing is scoped and priced individually, so you pay for exactly the coverage you need — with no hidden extras. After a short, no-obligation scoping call we send a fixed-price quote, usually within one business day, with clear deliverables, a firm timeline and a complimentary retest included. The price of your saas penetration testing depends on the size and complexity of the target and the depth of testing required, so you always know the cost up front before any work begins.
