Integrate ISPprotect version data
The ISPProtect scanner can deliver a list of CMS versions being used.
A report warning about outdated versions can be useful but why not integrate that data straight into the ISPconfig pages?
I once build a simple wrapper around https://github.com/CMS-Garden/cmsscanner.git to store it's data in my personal dashboard. Could ISPProtect do something similar? Either via the api or SQL inserts it could store it's version data in the ispconfig database. Then the sites overview page could get a CMS icon with on hover version info... maybe a background colour hinting about the status.