CVE-2025-27571

—

CVSS 3.1

4.3 medium

EPSS

<1%p17

Published

Apr 16, 2025 (Apr 16, 2025)

Modified

Jun 17, 2026

Description

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the "Allow Users to View Archived Channels" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived.

Vendors: mattermost
Products: mattermost server
Weakness: CWE-863
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

In the news0 stories

No ingested article mentions this CVE yet.