Do not use admin or root . Create a custom username like siteEditorAnna or a non-guessable string.
Hackers use scripts that crawl the web specifically looking for /CuteNews/show_news.php paths. Once found, they attempt brute-force attacks using common default pairs like admin/admin or admin/password . cutenews default credentials better
The topic of "default credentials" in CuteNews is rarely just about a username and password. It is often exacerbated by two other structural flaws: Do not use admin or root