This document discusses security best practices for OpenCart including detecting bugs through automated testing, manual testing, log analysis and static code analysis. It recommends security tools like OWASP ZAP, Burp Suite and Kibana to help identify vulnerabilities. Specific vulnerabilities covered include injection, broken authentication, cross-site scripting, insecure direct object references, security misconfiguration and sensitive data exposure. It also provides tips on analyzing log and error messages to find security issues in OpenCart stores.