Skip to content
OpenAdvisories
Medium · 5.4 CVE-2024-42406 EUVD-2024-39606GHSA-v53q-gwp7-274v

Unauthorized access on archived channels

Published Sep 26, 2024 · Updated Sep 26, 2024 · Assigned by Mattermost

Description

Mattermost versions 9.11.x <= 9.11.0, 9.10.x <= 9.10.1, 9.9.x <= 9.9.2 and 9.5.x <= 9.5.8 fail to properly authorize requests when viewing archived channels is disabled, which allows an attacker to retrieve post and file information about archived channels. Examples are flagged or unread posts as well as files.

Affected products

VendorProductAffectedFixed
Mattermost Mattermost 9.11.0, 9.10.0 – ≤ 9.10.1, 9.9.0 – ≤ 9.9.2, 9.5.0 – ≤ 9.5.8 10.0.0

Advisories 1

References