MEDIUM 5.4 Go
Mattermost allows members with permission to convert public channels to private and convert private to public
GHSA-h5v9-xw2g-7hrq · BIT-mattermost-2025-27933 · CVE-2025-27933 · GO-2025-3556
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Description
Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to to enforce channel conversion restrictions, which allows members with permission to convert public channels to private ones to also convert private ones to public.
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