What is CVE-2023-3587?

CVE-2023-3587 is a vulnerability in Mattermost Server that allows a system admin to modify a board state, granting unauthorized access to users with a valid sharing link.

How does Mattermost fail to show information in the UI?

Mattermost fails to display updated permissions in the UI, allowing users with a valid sharing link to join a board with editor access even if their permissions have been modified.

Which versions of Mattermost Server are affected by CVE-2023-3587?

Mattermost Server versions 7.8.0 to 7.8.7 and versions 7.10.0 to 7.10.3 are affected by CVE-2023-3587.

What is the severity of CVE-2023-3587?

CVE-2023-3587 has a severity value of 2.7, which is considered low.

How can I fix the CVE-2023-3587 vulnerability in Mattermost Server?

To fix the CVE-2023-3587 vulnerability, you should update Mattermost Server to a version higher than 7.8.7 or 7.10.3 where the issue is patched.

Vulnerability/
CVE-2023-3587

low

2.7

CWE

862

17/7/2023

2/8/2024

CVE-2023-3587: Inconsistent state in UI after boards permission change by system admin

First published: Mon Jul 17 2023(Updated: )

Mattermost fails to properly show information in the UI, allowing a system admin to modify a board state allowing any user with a valid sharing link to join the board with editor access, without the UI showing the updated permissions.

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	>=7.10.0<7.10.3

Remedy

Update Mattermost Server to versions 7.8.7, 7.9.5, 7.10.3 or higher.

Never miss a vulnerability like this again

Reference Links

https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2023-3587?
CVE-2023-3587 is a vulnerability in Mattermost Server that allows a system admin to modify a board state, granting unauthorized access to users with a valid sharing link.
How does Mattermost fail to show information in the UI?
Mattermost fails to display updated permissions in the UI, allowing users with a valid sharing link to join a board with editor access even if their permissions have been modified.
Which versions of Mattermost Server are affected by CVE-2023-3587?
Mattermost Server versions 7.8.0 to 7.8.7 and versions 7.10.0 to 7.10.3 are affected by CVE-2023-3587.
What is the severity of CVE-2023-3587?
CVE-2023-3587 has a severity value of 2.7, which is considered low.
How can I fix the CVE-2023-3587 vulnerability in Mattermost Server?
To fix the CVE-2023-3587 vulnerability, you should update Mattermost Server to a version higher than 7.8.7 or 7.10.3 where the issue is patched.

collector/nvd-latest
collector/nvd-index
agent/author
agent/type
agent/softwarecombine
collector/nvd-api
agent/software-canonical-lookup-request
agent/references
agent/weakness
agent/description
collector/mitre-cve
source/MITRE
agent/severity
agent/remedy
agent/title
agent/last-modified-date
agent/first-publish-date
agent/event
agent/tags
vendor/mattermost
canonical/mattermost mattermost server
version/mattermost mattermost server/7.8.0
version/mattermost mattermost server/7.10.0

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.