github.com/mattermost/mattermost-server/v5

199 known vulnerabilities.

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Critical 9.9

CVE-2025-25279 Public exploit EPSS 24%

Arbitrary file read in Mattermost Boards via import & export board archive

Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system via importing and exporting a speciall…

Mattermost Mattermost github.com/mattermost/mattermost-server github.com/mattermost/mattermost-server/v6 Go

Feb 24, 2025
Medium 4.9

CVE-2023-5968 Public exploit

Password hash in response body after username update

Mattermost fails to properly sanitize the user object when updating the username, resulting in the password hash being included in the response body.

Mattermost Mattermost github.com/mattermost/mattermost-server github.com/mattermost/mattermost-server/v6 Go

Nov 6, 2023