CVE-2025-3446

Members Without Guest Invite Permissions Can Add Guests to Teams

State: Published
Severity: 4.3 Medium
Published: May 15, 2025
Updated: May 15, 2025
Reserved: Apr 8, 2025

Description

Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N	Mattermost

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
MattermostMattermost	10.6.0 through 10.6.1Affected 10.5.0 through 10.5.2Affected 10.4.0 through 10.4.4Affected 9.11.0 through 9.11.11Affected 10.7.0Not affected 10.6.2Not affected 10.5.3Not affected 10.4.5Not affected 9.11.12Not affected

References

https://mattermost.com/security-updates

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