CVE-2025-6227
low-risk
Published 2025-07-18
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.
Do I need to act?
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0.04% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
2
CVSS 2.2/10
Low
NETWORK
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (1)
Vendor Advisory
https://mattermost.com/security-updates
14
/ 100
low-risk
Severity
9/34 · Low
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal