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CVE-2025-41443

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CVE-2025-41443

Published: Oct 16, 2025

Modified: Oct 29, 2025

PUBLISHED

CVSS v3.1

4.3

MEDIUM

Description

Mattermost versions 10.5.x <= 10.5.12, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when accessing channel information which allows guest users to discover active public channels and their metadata via the `/api/v4/teams/{team_id}/channels/ids` endpoint

VendorProductVersions

Mattermost

Mattermost

affected
10.5.0 - <= 10.5.12
affected
10.11.0 - <= 10.11.2
unaffected
10.12.0
unaffected
10.5.13
unaffected
10.11.3

Weaknesses (CWE)

CWE-862

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

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