Ainur Iagudin enhanced file upload security and reliability in the dbeaver/cloudbeaver repository by consolidating validation logic within the WebSQLFileLoaderServlet. Focusing on backend development and API security using Java, Ainur replaced regex-based forbidden character checks with compiled Pattern-based validation for upload paths, ensuring stricter input handling. The work also introduced rigorous UUID validation for file IDs, effectively mitigating risks of path traversal and injection attacks. By improving error messaging and addressing blob upload validation issues, Ainur strengthened the overall robustness of the file handling pipeline. This targeted approach improved data integrity and user trust in the cloudbeaver file upload process.