Deactivate and delete. This plugin has been closed as of May 4, 2022 and is not available for download. This closure is temporary, pending a full review.
Daniel Ruf discovered and reported this Arbitrary File Upload vulnerability in WordPress HTML2WP Plugin. This could allow a malicious actor to upload any type of file to your website. This can include backdoors which are then executed to gain further access to your website. This vulnerability has not been known to be fixed yet.
Arbitrary Settings Update via CrossSite Request Forgery (CSRF) vulnerability
Authenticated Arbitrary File Deletion vulnerability