The vulnerability stems from improper neutralization of user input in SQL queries. Both packages (exment/laravel-admin) are Laravel extensions where Grid components and custom query builders are common attack surfaces. The pattern matches Laravel Admin's Model::buildData which handles sorting/filtering, and Exment's DataViewService which likely processes user-defined views. These components would naturally handle user input for dynamic queries, and SQL injection would occur if raw input is used in ORDER BY clauses or WHERE conditions without parameter binding. The high confidence comes from the CWE-89 classification and typical vulnerability patterns in Laravel Admin derivatives.