Mattermost versions 10.10.x <= 10.10.2, 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to validate email ownership during Slack import process which allows attackers to create verified user accounts with arbitrary email domains via malicious Slack import data to bypass email-based team access restrictions
Metrics
Affected Vendors & Products
References
Link | Providers |
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https://mattermost.com/security-updates |
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History
Thu, 16 Oct 2025 14:15:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
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Thu, 16 Oct 2025 09:00:00 +0000
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Description | Mattermost versions 10.10.x <= 10.10.2, 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to validate email ownership during Slack import process which allows attackers to create verified user accounts with arbitrary email domains via malicious Slack import data to bypass email-based team access restrictions | |
Title | Slack import bypasses email verification for team access controls | |
Weaknesses | CWE-862 | |
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2025-10-16T14:00:19.181Z
Reserved: 2025-09-16T08:32:57.345Z
Link: CVE-2025-41410

Updated: 2025-10-16T13:59:54.143Z

Status : Awaiting Analysis
Published: 2025-10-16T09:15:33.313
Modified: 2025-10-16T15:28:59.610
Link: CVE-2025-41410

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