Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-54478.json"
[ { "events": [ { "introduced": "0" }, { "fixed": "1.5.0" } ] } ]