CVE-2025-41410
MEDIUM5.4EPSS 0.01%Mattermost has a Missing Authorization vulnerability
Published: 10/16/2025Modified: 11/5/2025
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.
Affected packages (6)
- Go/github.com/mattermost/mattermost-server>= 10.10.0, < 10.10.3
- Go/github.com/mattermost/mattermost-server>= 10.5.0+incompatible, < 10.5.11+incompatible, >= 10.10.0+incompatible, < 10.10.3+incompatible, >= 10.11.0+incompatible, < 10.11.3+incompatible
- Go/github.com/mattermost/mattermost-server/v5from 0
- Go/github.com/mattermost/mattermost-server/v6from 0
- Go/github.com/mattermost/mattermost/server/v8from 0, < 8.0.0-20250822083415-01b95392a450
- Go/github.com/mattermost/mattermost/server/v8from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
References (7)
- ADVISORYhttps://github.com/advisories/GHSA-3q4q-wqm6-hvf3
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-41410
- PATCHhttps://github.com/mattermost/mattermost
- WEBhttps://github.com/mattermost/mattermost/commit/01b95392a450676407475596d1c041a047067329
- WEBhttps://github.com/mattermost/mattermost/commit/0d6e8fa2e4681a172a136db18001104a57f9c28e
- WEBhttps://github.com/mattermost/mattermost/commit/ef896a4ea60cacbe03124106e1f42e5c25276427
- WEBhttps://mattermost.com/security-updates