Vulnerability Details CVE-2025-6227
Mattermost versions 10.5.x <= 10.5.7, 9.11.x <= 9.11.16 fail to negotiate a new token when accepting the invite which allows a user that intercepts both invite and password to send synchronization payloads to the server that originally created the invite via the REST API.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.8%
CVSS Severity
CVSS v3 Score 2.2
References
Products affected by CVE-2025-6227
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cpe:2.3:a:mattermost:mattermost_server:10.5.0
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cpe:2.3:a:mattermost:mattermost_server:10.5.1
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cpe:2.3:a:mattermost:mattermost_server:10.5.2
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cpe:2.3:a:mattermost:mattermost_server:10.5.3
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cpe:2.3:a:mattermost:mattermost_server:10.5.4
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cpe:2.3:a:mattermost:mattermost_server:10.5.5
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cpe:2.3:a:mattermost:mattermost_server:10.5.6
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cpe:2.3:a:mattermost:mattermost_server:10.5.7
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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:9.11.10
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cpe:2.3:a:mattermost:mattermost_server:9.11.11
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cpe:2.3:a:mattermost:mattermost_server:9.11.12
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cpe:2.3:a:mattermost:mattermost_server:9.11.13
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cpe:2.3:a:mattermost:mattermost_server:9.11.14
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cpe:2.3:a:mattermost:mattermost_server:9.11.15
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cpe:2.3:a:mattermost:mattermost_server:9.11.16
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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
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cpe:2.3:a:mattermost:mattermost_server:9.11.8
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cpe:2.3:a:mattermost:mattermost_server:9.11.9