123-MPU – Security Analysis & Production Readiness of a Lovable Platform

Starting point

The client had built the “MPU Manager” with Lovable and Supabase — a multi-tenant client management system handling sensitive personal data, documents, and video recordings. Before going live, the critical questions common to all vibe-coding apps arose: Is the tenant isolation truly watertight? Do the RLS policies actually work — or do they merely exist? What happens with 100 or 1,000 active users?

Solution

A comprehensive technical analysis of the entire platform: multi-tenant architecture and database design, systematic cross-tenant penetration testing of the RLS policies, secrets and API key scanning, auth and magic-link security, storage and video access control, as well as a review of the API integrations (Zoom, LearningSuite, Calendly, Stripe). Complemented by a threat model, a scalability and cost-structure analysis, a documented findings database with bug reports, and a prioritized “ship-ready” checklist with a concrete five-phase action plan.

Technology stack

• Lovable + Supabase (Row Level Security, Storage, Edge Functions)
• Multi-tenant security testing (cross-tenant access, query manipulation, JWT validation)
• API integrations: Zoom, LearningSuite, Calendly, Stripe (webhook security)
• Threat modeling & CWE-based vulnerability analysis
• Performance & cost-structure analysis (connection pooling, rate limiting, edge functions)

Result & Impact

• Critical vulnerabilities and bugs identified and documented before go-live
• Prioritized 5-phase action plan toward a “ship-ready” platform
• Clear threat model and target picture: what “secure enough for the market” concretely means
• Sound basis for decisions on production rollout and scaling