Medium severity · published May 30, 2025
CVE-2025-3611
Improper Access Control in Mattermost allows System Managers to view team details despite role restrictions
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly enforce access control restrictions for System Manager roles, allowing authenticated users with System Manager privileges to view team details they should not have access to via direct API requests to team endpoints, even when explicitly configured with 'No access' to Teams in the System Console.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mattermost · Mattermost
10.7.0; 10.5.0 through 10.5.3; 9.11.0 through 9.11.12 · source: vendor
MS
Mattermost Server · Mattermost
9.11.0 before 9.11.13; 10.5.0 before 10.5.4; 10.7.0; 10.7.0; 10.7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3611
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-3611
Vendor Advisory
https://mattermost.com/security-updates
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