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.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
---|---|---|
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EUVD-2024-38239 | 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. |
Fixes
Solution
Update Mattermost to versions 9.9.0, 9.8.1, 9.5.6 or higher.
Workaround
No workaround given by the vendor.
References
Link | Providers |
---|---|
https://mattermost.com/security-updates |
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History
No history.

Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2024-08-02T04:26:16.012Z
Reserved: 2024-07-01T10:22:11.574Z
Link: CVE-2024-39807

Updated: 2024-08-02T04:26:16.012Z

Status : Modified
Published: 2024-07-03T09:15:07.210
Modified: 2024-11-21T09:28:22.227
Link: CVE-2024-39807

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