During September 2025, Spopescu developed and delivered the HTML ID Validation and Security Hardening feature for the adobe/aem-core-wcm-components repository. This work focused on enhancing security by implementing robust path sanitization, blocking dangerous characters, and ensuring proper URL encoding to prevent path traversal and unsafe inputs. Spopescu applied front end development and JavaScript expertise, integrating comprehensive test automation to verify the new security measures. The feature improved the stability and safety of component interactions, supporting more secure authoring workflows. The depth of the implementation demonstrated a strong understanding of security best practices and thorough testing within a modern JavaScript codebase.