For people who have the Atlassian Cloud offering this is not a problem and has been fixed. The only people who are impacted are the one who host Confluence them

For people who have the Atlassian Cloud offering this is not a problem and has been fixed. The only people who are impacted are the one who host Confluence themselves. There isn't much that Atlassian can do except that tell them to update the software. If you are maintaining the software of someone else and this software is exposed to the internet that's your responsibility to update the software. If you want your service to be available from the web and have good security, use the cloud offering, that's what it's for. And if you don't want to use external software to manage your internal knowledge, then create some shared windows folders that nobody use and quickly becomes a mess. What alternative do your propose ?