To secure a KnowWE(JSPWiki) installation, you have to edit two files:

• jspwiki.properties:
  • at the very bottom uncomment the line jspwiki.approver.workflow.saveWikiPage=Admin to enable the forced approval of new user accounts by an admin. (Make sure there is an 'Admin' group)
  • make sure the option allowHTML is set to false

• jspwiki.policiy: comment the permissions of 'Anonymous' to disable anonymous editing before:

grant principal com.ecyrd.jspwiki.auth.authorize.Role "Anonymous" {
//    permission com.ecyrd.jspwiki.auth.permissions.PagePermission "*:*", "modify";
//    permission com.ecyrd.jspwiki.auth.permissions.WikiPermission "*", "createPages";
};

• Install.jsp: KnowWE releases up to 2026.7 still contain it; delete the file from the root folder of the web application.

• Admin accounts: Make sure every account in the group Admin has an individual, strong password before you go online.

After that, restart the container and the wiki is secure.