Vulnerability Details CVE-2025-25279
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 specially crafted import archive in Boards.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.22
EPSS Ranking 95.5%
CVSS Severity
CVSS v3 Score 9.9
References
Products affected by CVE-2025-25279
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cpe:2.3:a:mattermost:mattermost_server:10.2.0
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cpe:2.3:a:mattermost:mattermost_server:10.2.1
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cpe:2.3:a:mattermost:mattermost_server:10.2.2
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cpe:2.3:a:mattermost:mattermost_server:10.3.0
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cpe:2.3:a:mattermost:mattermost_server:10.3.1
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cpe:2.3:a:mattermost:mattermost_server:10.3.2
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cpe:2.3:a:mattermost:mattermost_server:10.4.0
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cpe:2.3:a:mattermost:mattermost_server:10.4.1
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cpe:2.3:a:mattermost:mattermost_server:9.11.0
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cpe:2.3:a:mattermost:mattermost_server:9.11.1
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cpe:2.3:a:mattermost:mattermost_server:9.11.2
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cpe:2.3:a:mattermost:mattermost_server:9.11.3
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cpe:2.3:a:mattermost:mattermost_server:9.11.4
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cpe:2.3:a:mattermost:mattermost_server:9.11.5
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cpe:2.3:a:mattermost:mattermost_server:9.11.6
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cpe:2.3:a:mattermost:mattermost_server:9.11.7