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OpenAdvisories
Medium · 4.3 CVE-2023-43754 EUVD-2023-2991GHSA-jjr7-372r-cx7x

Permalink previews displayed for posts in archived channels even if users are disallowed to view archived channels

Published Nov 27, 2023 · Updated Aug 2, 2024 · Assigned by Mattermost

Description

Mattermost fails to check whether the  “Allow users to view archived channels”  setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the “Allow users to view archived channels” setting is disabled. 

Affected products

VendorProductAffectedFixed
Mattermost Mattermost ≤ 7.8.12, ≤ 8.1.3, ≤ 9.0.1, ≤ 9.1.0 9.0.2

Affected packages

Advisories 1

References