Which versions of Mattermost are affected by CVE-2023-2797?

Versions between 7.1.0 and 7.1.9, versions between 7.8.0 and 7.8.4, and version 7.10.0 of Mattermost are affected by CVE-2023-2797.

What is the severity of CVE-2023-2797?

CVE-2023-2797 has a severity rating of 6.5 (medium).

How can I fix CVE-2023-2797?

To fix CVE-2023-2797, it is recommended to update Mattermost to a version that has patched the vulnerability. Refer to the vendor's security updates for more information.

Vulnerability/
CVE-2023-2797

medium

6.5

CWE

16/6/2023

2/8/2024

CVE-2023-2797: Path traversal in GitHub plugin's code preview feature

Q: What is CVE-2023-2797?

CVE-2023-2797 is a vulnerability in Mattermost that allows an attacker to preview code from private repositories by posting a specially crafted permalink on a channel.

Q: How does Mattermost fail to sanitize code permalinks?

Mattermost fails to properly sanitize code permalinks, allowing an attacker to exploit the vulnerability.

First published: Fri Jun 16 2023(Updated: )

Mattermost fails to sanitize code permalinks, allowing an attacker to preview code from private repositories by posting a specially crafted permalink on a channel.

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	=7.10.0

Remedy

Update Mattermost to version v7.1.10, v7.8.5, v7.10.1 or higher.

Never miss a vulnerability like this again

Reference Links

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

Frequently Asked Questions

What is CVE-2023-2797?
CVE-2023-2797 is a vulnerability in Mattermost that allows an attacker to preview code from private repositories by posting a specially crafted permalink on a channel.
How does Mattermost fail to sanitize code permalinks?
Mattermost fails to properly sanitize code permalinks, allowing an attacker to exploit the vulnerability.
Which versions of Mattermost are affected by CVE-2023-2797?
Versions between 7.1.0 and 7.1.9, versions between 7.8.0 and 7.8.4, and version 7.10.0 of Mattermost are affected by CVE-2023-2797.
What is the severity of CVE-2023-2797?
CVE-2023-2797 has a severity rating of 6.5 (medium).
How can I fix CVE-2023-2797?
To fix CVE-2023-2797, it is recommended to update Mattermost to a version that has patched the vulnerability. Refer to the vendor's security updates for more information.

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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/7.10.0

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