Making summary information about XOOPS vulnerabilities will definitely help hackers, but I am not so sure it will make webmasters more responsible about patching their sites.

The most common factor in sites getting hacked is probably because they didn't keep up to date with security patches. Unfortunately most people do not take this seriously until they have a problem (they also don't take backups seriously until they have a problem).

WF-Sections just had a security update (see the news) (sorry I was thinking of something else). If you post a list of the modules you are using people will probably be able to give you some advice on whether there are known problems.

Generally speaking it is best to stick to modules that are actively supported and widely used. Avoid experimental modules on production sites. The only real defence is to make sure you have an up to date backup. If you don't have a backup, you don't have a site - what you have is an train wreck waiting to happen.