This research aims to enhance higher-order thinking Skills (HOTS) in undergraduates by exploring the integration of Challenge-Based Learning (CBL) and Personal Learning Environments (PLEs). Through a thorough review of existing literature, the study develops a comprehensive platform that combines the practical, real-world problem-solving nature of CBL with the customizable, digital features of PLEs. The platform is meticulously designed to support CBL within the framework of PLE, offering a wide array of resources, collaborative workspaces for peer interaction, real-time analytics for ongoing assessment, and a continuous cycle of reflection and feedback. The paper highlights the potential of this integration to significantly improve analytical and critical thinking skills among learners. While grounded in theoretical research, the study identifies a new area for future empirical research and practical application, advocating for further exploration to fully harness the potential of this innovative educational approach.