Redmine

How do I get details on the issues at https://www.redmine.org/projects/redmine/wiki/Security_Advisories ?

Something like, "Information leak when rendering Wiki links" doesn't really tell me much. Like what kind of information, and what causes this leak? I use Redmine in an environment that isn't conducive to quick changes or upgrades, so it's beneficial to know some details to help mitigate the problem until we can do the upgrade.