The versions listed below are known to be affected by this issue. If you are using one of those versions, you should update to a newer release that has no known vulnerabilities.
Common Name None VWE-ID VWE-2019-5280 Related Report None Severity HIGH Exploit Difficulty EASY Platform XenForo 2.1.x Description Subscription Management. Users may receive push notifications about wiki content, even though they have opted out of those notifications, as long as they are opted in to the corresponding alerts.
Discovered June 25, 2019 Resolved July 14, 2019 Patches Available 4.1.0 Beta 2 Workaround In AdminCP > Setup > VaultWiki: Notifications, uncheck Enable Wiki Subscriptions.