CVE-2023-47858

Details of archived public channels are leaked to members of another team

State: Published
Severity: 4.3 Medium
Published: Jan 2, 2024
Updated: Jun 17, 2025
Reserved: Dec 21, 2023

Description

Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.

Scores

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

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
MattermostMattermost	9.2.2 and earlierAffected 9.1.3 and earlierAffected 9.0.4 and earlierAffected 8.1.6 and earlierAffected 8.1.7Not affected 9.0.5Not affected 9.1.4Not affected 9.2.3Not affected

References

https://mattermost.com/security-updates

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