What is CVE-2023-3582?

CVE-2023-3582 is a vulnerability in Mattermost that allows a low-privileged authenticated user to link a board to a private channel they don't have access to.

What is the severity of CVE-2023-3582?

The severity of CVE-2023-3582 is medium with a CVSS score of 4.3.

How does CVE-2023-3582 affect Mattermost?

CVE-2023-3582 affects Mattermost versions 7.8.0 to 7.8.7, 7.9.0 to 7.9.5, and 7.10.0 to 7.10.3.

How can I fix CVE-2023-3582 in Mattermost?

To fix CVE-2023-3582 in Mattermost, you should update to a version that is not affected by the vulnerability.

Where can I find more information about CVE-2023-3582?

More information about CVE-2023-3582 can be found at the following link: https://mattermost.com/security-updates

Vulnerability/
CVE-2023-3582

medium

4.3

CWE

863

17/7/2023

2/8/2024

CVE-2023-3582: Lack of channel membership check when linking a board to a channel

First published: Mon Jul 17 2023(Updated: )

Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to,

Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com

Affected Software	Affected Version	How to fix
Mattermost Mattermost Server	>=7.8.0<7.8.7
Mattermost Mattermost Server	>=7.9.0<7.9.5
Mattermost Mattermost Server	>=7.10.0<7.10.3

Remedy

Update Mattermost Server to versions v7.8.7, v7.9.5, v7.10.3 or higher.

Never miss a vulnerability like this again

Reference Links

https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2023-3582?
CVE-2023-3582 is a vulnerability in Mattermost that allows a low-privileged authenticated user to link a board to a private channel they don't have access to.
What is the severity of CVE-2023-3582?
The severity of CVE-2023-3582 is medium with a CVSS score of 4.3.
How does CVE-2023-3582 affect Mattermost?
CVE-2023-3582 affects Mattermost versions 7.8.0 to 7.8.7, 7.9.0 to 7.9.5, and 7.10.0 to 7.10.3.
How can I fix CVE-2023-3582 in Mattermost?
To fix CVE-2023-3582 in Mattermost, you should update to a version that is not affected by the vulnerability.
Where can I find more information about CVE-2023-3582?
More information about CVE-2023-3582 can be found at the following link: https://mattermost.com/security-updates

collector/nvd-latest
collector/nvd-index
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vendor/mattermost
canonical/mattermost mattermost server
version/mattermost mattermost server/7.8.0
version/mattermost mattermost server/7.9.0
version/mattermost mattermost server/7.10.0

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