CVE-2025-2564

MEDIUM

Mattermost 9.11.0-9.11.9 and 10.5.0-10.5.1 - Authenticated Incorrect Authorization in Archived Channel Access Control

Title source: llm

Description

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to properly enforce the 'Allow users to view/update archived channels' System Console setting, which allows authenticated users to view members and member information of archived channels even when this setting is disabled.

References (1)

Core 1

Core References

Vendor Advisory

https://mattermost.com/security-updates

Scores

CVSS v3 4.3

EPSS 0.0018

EPSS Percentile 39.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-863

Status published

Products (2)

mattermost/mattermost 10.5.0 - 10.5.2Go

mattermost/mattermost_server 9.11.0 - 9.11.10

Published Apr 16, 2025

Tracked Since Feb 18, 2026