First published: Wed Jul 03 2024(Updated: )
Mattermost versions 9.5.x <= 9.5.5 and 9.8.0 fail to properly sanitize the recipients of a webhook event which allows an attacker monitoring webhook events to retrieve the channel IDs of archived or restored channels.
Credit: responsibledisclosure@mattermost.com
Affected Software | Affected Version | How to fix |
---|---|---|
Mattermost Mattermost | >=9.5.0<9.5.6 | |
Mattermost Mattermost | >=9.8.0<9.8.1 |
Update Mattermost to versions 9.9.0, 9.8.1, 9.5.6 or higher.
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