CVE-2025-3227
MEDIUM EPSS 10.6%
Published Jun 20, 20251y ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Published Jun 20, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
Description
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly enforce channel member management permissions in playbook runs, allowing authenticated users without the 'Manage Channel Members' permission to add or remove users from public and private channels by manipulating playbook run participants when the run is linked to a channel.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None
Threat Intelligence
EPSS Exploit Probability
10.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-863 Incorrect Authorization Authorization
Affected Products 8
| Vendor | Product | Version | Range |
|---|---|---|---|
| mattermost | mattermost_server | * | ≥9.11.0 – <9.11.16 |
| mattermost | mattermost_server | * | ≥10.5.0 – <10.5.6 |
| mattermost | mattermost_server | * | ≥10.6.0 – <10.6.6 |
| mattermost | mattermost_server | * | ≥10.7.0 – <10.7.3 |
| mattermost | mattermost_server | 10.8.0 | any |
| mattermost | mattermost_server | 10.8.0 | any |
| mattermost | mattermost_server | 10.8.0 | any |
| mattermost | mattermost_server | 10.8.0 | any |
References 1
- mattermost.com https://mattermost.com/security-updates
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.