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CVE-2024-39839

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CVE-2024-39839

Published: Aug 1, 2024

Modified: Aug 1, 2024

PUBLISHED

CVSS v3.1

4.3

MEDIUM

Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.

VendorProductVersions

Mattermost

Mattermost

affected
9.9.0
affected
9.5.0 - <= 9.5.6
affected
9.7.0 - <= 9.7.5
affected
9.8.0 - <= 9.8.1
unaffected
9.10.0

+4 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

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