Marketplace · Free Initial Audit
Security Audit for Two-Sided Marketplace Apps
Marketplace platforms have complex trust boundaries between buyers and sellers. We audit authorization logic, payment flows, and user data exposure.
The Risk
Two-sided marketplaces have unique attack surfaces: one user can escalate to act as another, sellers can manipulate listings, and payout APIs are often undertested.
Top Marketplace Vulnerabilities We Find
Privilege escalation between buyer/seller roles
Insecure direct object references on listings
Payout fraud via API manipulation
Mass assignment vulnerabilities on user profiles
Stored XSS in seller-controlled fields
Compliance Frameworks
Our Marketplace audits are structured around: PCI-DSS, GDPR, CCPA
Ready to secure your Marketplace app?
Free initial audit. Three findings, ranked by severity. No credit card, no pitch.