PHPGurukul Dairy Farm Shop Management System 1.0 is vulnerable to SQL injection, as demonstrated by the username parameter in index.php, the category and CategoryCode parameters in add-category.php, the CompanyName parameter in add-company.php, and the ProductName and ProductPrice parameters in add-product.php.
Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com>