CVE-2024-1888

Existing server guests invited to the team by members without "invite_guest" permission

Published Feb 29, 2024 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Mattermost fails to check the "invite_guest" permission when inviting guests of other teams to a team, allowing a member with permissions to add other members but not to add guests to add a guest to a team as long as the guest was already a guest in another team of the server

Remediation

Vendor Solution

Update Mattermost Server to versions 9.5.0, 9.4.2, 9.3.1, 9.2.5, 8.1.9 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-0685 Mattermost fails to check the "invite_guest" permission when inviting guests of other teams to a team, allowing a member with permissions to add other members but not to add guests to add a guest to a team as long as the guest was already a guest in another team of the server
Github GHSA Github GHSA GHSA-pfw6-5rx3-xh3c Mattermost fails to check the "invite_guest" permission
References
History
Type Values Removed Values Added
First Time appeared Mattermost
Mattermost mattermost Server
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Vendors & Products Mattermost
Mattermost mattermost Server
Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Aug 1, 2024, 6:56 PM
Reserved
Feb 26, 2024, 9:37 AM
Status
Analyzed
Published
Feb 29, 2024, 9:15 AM
Modified
Jun 17, 2026, 7:05 AM