modular-saas-architecture

This document is a benign architecture and implementation guide for a modular multi-tenant SaaS platform. The code samples are consistent with the stated purpose and mostly follow safe patterns (per-tenant scoping, prepared statements shown, event-based decoupling). The main risks are operational: if the modules/ directory or bootstrap files are writable by untrusted parties, attackers could add malicious module.config.php or bootstrap listeners leading to arbitrary code execution. Other minor risks include potential reflected XSS if outputs are not escaped and the presence of stub/‘BAD’ examples that could be copied into production. No direct malicious code, remote downloads, credential exfiltration, or obfuscation is present in the supplied snippets.