CVE-2025-27571CWE-863

Channel metadata visible in archived channels despite configuration setting

Medium · published April 16, 2025

CVSS v3.1
4.3
EPSS
0%
Percentile
18.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00273 · 18.6th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2025-04-16T07:45Z
EPSS history
Timeline
  • 16 APR 07:45Z
    Channel metadata visible in archived channels despite configuration setting
    cvelistv5