codeigniter4 — Vulnerabilities & Security Advisories 21

CodeIgniter4 serves as a PHP framework for rapid web application development, particularly suited for building dynamic websites and APIs. Historically, it has faced vulnerabilities across multiple classes, including remote code execution, cross-site scripting (XSS), and privilege escalation, often stemming from input validation flaws and misconfigurations. While no major public security incidents have been widely documented, the 16 CVEs on record highlight persistent concerns, particularly around improper access controls and insecure deserialization. The framework's security posture has improved over time, but developers must remain vigilant about implementing proper input sanitization and security configurations to mitigate risks.