An online store is a machine for moving money, which makes its logic — not just its code — a target. Attackers rarely need a classic exploit when they can manipulate a price, stack a coupon, or skip a payment step. Our e-commerce penetration testing focuses on exactly those business-logic and payment flaws, alongside the OWASP Top 10, to protect your revenue and your customers' data.
We go beyond scanning to abuse the flows that matter commercially: tampering with prices and quantities, stacking discounts, replaying and racing payment steps, and hunting IDOR across orders, invoices and accounts. These are the flaws that directly drain revenue and rarely show up in an automated report.
A single checkout-logic flaw can be exploited at scale before you notice it in your revenue figures, and a card-data exposure turns straight into a PCI and breach-notification problem. E-commerce risk is business risk, and it deserves testing that thinks like a fraudster, not a scanner.
What we test
Payment and checkout flow abuse
Price and quantity manipulation
Coupon, discount and loyalty-point abuse
Cart and order business-logic flaws
Account takeover and PII exposure
Third-party and payment-gateway integrations
Common vulnerabilities we uncover
Price/parameter tampering at checkout
Coupon and voucher stacking abuse
IDOR on orders, invoices and accounts
Payment bypass and race conditions
Stored XSS in product/review fields
PII and cardholder-data exposure
Our methodology
Scoping & rules of engagement. We agree objectives, targets and boundaries for your e-commerce 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 map the full purchase journey — registration, catalogue, cart, checkout, payment callback and post-order account area — and attack each stage manually with Burp Suite Professional. Payment integrations are tested for tampering, replay and race conditions against the gateway's expected flow.
Because much of the risk is logic rather than a single payload, we model how a real fraudster would combine small abuses — a tampered price plus a stacked coupon plus a replayed callback — into a repeatable scheme, and give you the evidence to shut it down.
When you need this engagement
You run an online store handling payments or card data
You are preparing for or maintaining PCI DSS compliance
You have added coupons, loyalty or a new checkout flow
You suspect fraud, price abuse or coupon abuse
You are launching or migrating an e-commerce platform
What you receive
Executive and technical report with evidence
Prioritised business-logic and OWASP findings
PCI DSS-relevant remediation guidance
Reproduction steps for every issue
Attestation letter for partners and acquirers
Complimentary retest after fixes
What’s included in your report
Every e-commerce 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
PCI DSSOWASP Top 10OWASP WSTGGDPR / data protection
Outcomes you can expect
After your e-commerce 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 e-commerce 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 e-commerce 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
E-Commerce 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…
OWASP Top 10 Penetration Testing — OWASP Top 10 penetration testing — manual, exploit-led assessment against every OWASP risk category.
How much does E-Commerce Penetration Testing cost?
Every e-commerce 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 e-commerce 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.
