First published: Thu Aug 01 2024(Updated: )
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
Affected Software | Affected Version | How to fix |
---|---|---|
go/github.com/mattermost/mattermost/server/v8 | =9.9.0 | 9.9.1 |
go/github.com/mattermost/mattermost/server/v8 | >=9.5.0<9.5.7 | 9.5.7 |
Mattermost Mattermost | >=9.5.0<9.5.7 | |
Mattermost Mattermost | =9.9.0 | |
>=9.5.0<9.5.7 | ||
=9.9.0 |
Update Mattermost to versions 9.10.0, 9.9.1, 9.5.7 or higher.
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