WordPress Theme Twenty Twenty-One Out Of Date
Invicti identified a version disclosure in the WordPress theme and detected that it is out of date.
These themes are used to modify the layout and design of a WordPress installation and are mostly developed by external developers and not by the WordPress maintainers. Since they may contain PHP code, it is advised to keep the number of themes at the required minimum to avoid increasing the attack surface.
This information can help an attacker gain a greater understanding of the systems in use and potentially develop further attacks targeted at the specific version of WordPress Theme discovered.
Please upgrade the theme to latest stable version.