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Mattermost Improper Access Control vulnerability

Moderate severity GitHub Reviewed Published Nov 27, 2023 to the GitHub Advisory Database • Updated Nov 28, 2023

Package

gomod github.com/mattermost/mattermost-server/v6 (Go)

Affected versions

< 7.8.13

Patched versions

7.8.13
gomod github.com/mattermost/mattermost/server/v8 (Go)
< 8.1.4
8.1.4

Description

Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the Hardened Mode setting was enabled

References

Published by the National Vulnerability Database Nov 27, 2023
Published to the GitHub Advisory Database Nov 27, 2023
Reviewed Nov 28, 2023
Last updated Nov 28, 2023

Severity

Moderate
4.3
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weaknesses

CVE ID

CVE-2023-47865

GHSA ID

GHSA-jj46-9cgh-qmfx

Source code

Checking history
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