CMSimple — Vulnerabilities & Security Advisories 5

CMSimple serves as a lightweight content management system designed for straightforward website creation and maintenance without requiring database dependencies. Historically, it has been susceptible to multiple cross-site scripting (XSS) vulnerabilities, remote code execution (RCE) flaws, and privilege escalation issues, primarily stemming from insufficient input validation and improper access controls. The platform's minimal architecture reduces attack surfaces compared to more complex CMS platforms, though its age and infrequent updates contribute to persistent security challenges. While no major public security incidents have been widely documented, the five recorded CVEs highlight ongoing risks for users who fail to implement timely patches and security hardening measures.