Hi Coffigniez​, on the 6th of January 2022, WordPress released a security update and recommended users to “update your sites immediately”.

This WordPress core 5.8.3 security update addresses 4 different security vulnerabilities which affect WordPress core versions between 3.7 and 5.8.

For many, WordPress automatically updates the core to the latest version. Check if your WordPress version is 5.8.3 - if not, update immediately!