protected $_categoryFactory;
protected $_registry;

public function __construct(
    ....
    MagentoFrameworkRegistry $registry,
    MagentoCatalogModelCategoryFactory $categoryFactory
    ....
) {
    ....
    $this->_registry = $registry;
    $this->_categoryFactory = $categoryFactory;
    ....
}

public function yourFunction()
{
    $current_cat_id = $this->_registry->registry('current_category')->getId();
    $categoryData = $this->_categoryFactory->create()->load($current_cat_id);
    $getContent = $categoryData->getData('is_home_page'); //is_home_page = your attribute code
    echo $getContent;
}