Mattermost Boards plugin v0.10.0 and earlier fails to invalidate a session on the server-side when a user logged out of Boards, which allows an attacker to reuse old session token for authorization.CreditsHagai Wechsler from WhiteSourceReferenceshttps://mattermost.com/security-updates/https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-37866
