What is CVE-2023-2792?

CVE-2023-2792 is a vulnerability in Mattermost that allows an attacker to obtain arbitrary message contents.

What is the severity level of CVE-2023-2792?

CVE-2023-2792 has a severity level of medium.

Which versions of Mattermost are affected by CVE-2023-2792?

Mattermost versions 7.1.0 to 7.1.9, 7.8.0 to 7.8.4, 7.9.0 to 7.9.3, and 7.10.0 are affected by CVE-2023-2792.

How can an attacker exploit CVE-2023-2792?

An attacker can exploit CVE-2023-2792 by using a specially crafted /groupmsg command to obtain arbitrary message contents.

How can I fix CVE-2023-2792?

To fix CVE-2023-2792, it is recommended to update to a version of Mattermost that is not affected by the vulnerability.

Vulnerability/
CVE-2023-2792

medium

6.5

CWE

200

16/6/2023

2/8/2024

CVE-2023-2792: Ephemeral messages return private channel contents in permalink previews

First published: Fri Jun 16 2023(Updated: )

Mattermost fails to sanitize ephemeral error messages, allowing an attacker to obtain arbitrary message contents by a specially crafted /groupmsg command.

Credit: responsibledisclosure@mattermost.com

Affected Software	Affected Version	How to fix
Mattermost Mattermost	>=7.1.0<=7.1.9
Mattermost Mattermost	>=7.8.0<=7.8.4
Mattermost Mattermost	>=7.9.0<=7.9.3
Mattermost Mattermost	=7.10.0

Remedy

Update Mattermost to version 7.1.10, 7.8.5, 7.9.4, 7.10.1 or higher

Never miss a vulnerability like this again

Reference Links

https://mattermost.com/security-updates/

Frequently Asked Questions

What is CVE-2023-2792?
CVE-2023-2792 is a vulnerability in Mattermost that allows an attacker to obtain arbitrary message contents.
What is the severity level of CVE-2023-2792?
CVE-2023-2792 has a severity level of medium.
Which versions of Mattermost are affected by CVE-2023-2792?
Mattermost versions 7.1.0 to 7.1.9, 7.8.0 to 7.8.4, 7.9.0 to 7.9.3, and 7.10.0 are affected by CVE-2023-2792.
How can an attacker exploit CVE-2023-2792?
An attacker can exploit CVE-2023-2792 by using a specially crafted /groupmsg command to obtain arbitrary message contents.
How can I fix CVE-2023-2792?
To fix CVE-2023-2792, it is recommended to update to a version of Mattermost that is not affected by the vulnerability.

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agent/severity
agent/title
agent/remedy
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agent/first-publish-date
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vendor/mattermost
canonical/mattermost mattermost
version/mattermost mattermost/7.1.0
version/mattermost mattermost/7.1.9
version/mattermost mattermost/7.8.0
version/mattermost mattermost/7.8.4
version/mattermost mattermost/7.9.0
version/mattermost mattermost/7.9.3
version/mattermost mattermost/7.10.0

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