The maintainability of Content Management Systems (CMS) within Learning Management Systems (LMS) is critical in educational institutions to ensure efficient content management, system scalability, and security. This paper presents a framework aimed at enhancing the maintainability of CMS within LMS in Kenyan universities. The research utilizes Cognitive Load Theory and Software Evaluation Theory to address CMS challenges, focusing on perfective, corrective, adaptive, and preventive maintenance. This paper also discusses key factors influencing CMS maintainability, including system documentation, modularity, and error handling. Findings from this study contribute to the development of a framework and advancing CMS design in LMS, providing a robust, scalable, and secure platform for educators and administrators.