CVE-2023-4106: A guest user can perform various actions on public playbooks
First published: Fri Aug 11 2023(Updated: )
Mattermost fails to check if the requesting user is a guest before performing different actions to public playbooks, resulting a guest being able to view, join, edit, export and archive public playbooks.
Credit: responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost Mattermost | >=7.8.0<7.8.8 | |
| Mattermost Mattermost | >=7.9.0<7.9.6 | |
| Mattermost Mattermost | >=7.10.0<7.10.4 | |
| go/github.com/mattermost/mattermost-server/v6 | <=7.8.7 | 7.8.8 |
| go/github.com/mattermost/mattermost-server/v6 | >=7.10.0<=7.10.3 | 7.10.4 |
| go/github.com/mattermost/mattermost-server/v6 | >=7.9.0<=7.9.5 | 7.9.6 |
Remedy
Update Mattermost Server to versions 7.8.8, 7.9.5, 7.10.4 or higher. Otherwise, update the Playbooks plugin to version v1.37.0 or higher.
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Reference Links
Frequently Asked Questions
What is CVE-2023-4106?
CVE-2023-4106 is a vulnerability in Mattermost that allows a guest user to perform unauthorized actions on public playbooks.
How severe is CVE-2023-4106?
CVE-2023-4106 is rated as medium severity with a CVSS score of 6.3.
Which software versions are affected by CVE-2023-4106?
Affected versions of Mattermost include 7.8.0 to 7.8.8, 7.9.0 to 7.9.6, and 7.10.0 to 7.10.4.
How can a guest user exploit CVE-2023-4106?
A guest user can exploit CVE-2023-4106 to view, join, edit, export, and archive public playbooks in Mattermost.
How can CVE-2023-4106 be fixed?
To fix CVE-2023-4106, upgrade Mattermost to version 7.8.9, 7.9.7, or 7.10.5.
- collector/nvd-api
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- alias/GHSA-p267-jjfq-pphf
- alias/CVE-2023-4106
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- collector/github-advisory
- agent/type
- agent/softwarecombine
- agent/weakness
- collector/mitre-cve
- source/MITRE
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- agent/last-modified-date
- agent/title
- agent/remedy
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- vendor/mattermost
- canonical/mattermost mattermost
- version/mattermost mattermost/7.8.0
- version/mattermost mattermost/7.9.0
- version/mattermost mattermost/7.10.0
- package-manager/go