CVE-2025-9081 - Vulnerability Details - OpenCVE

Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate access controls which allows any authenticated user to download sensitive files via board file download endpoint using UUID enumeration

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Fixes

Solution

Update Mattermost to versions 10.11.0, 10.5.9, 9.11.18 or higher.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://mattermost.com/security-updates

History

Fri, 19 Sep 2025 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 19 Sep 2025 19:45:00 +0000

Type	Values Removed	Values Added
Description		Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate access controls which allows any authenticated user to download sensitive files via board file download endpoint using UUID enumeration
Title		IDOR in board file download allows any user to download any file by UUID
Weaknesses		CWE-639
References		https://mattermost.com/security-updates
Metrics		cvssV3_1 `{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'}`

MITRE

Status: PUBLISHED

Assigner: Mattermost

Published: 2025-09-19T19:36:14.702Z

Updated: 2025-09-19T19:52:03.664Z

Reserved: 2025-08-15T15:45:37.336Z

Link: CVE-2025-9081

Vulnrichment

Updated: 2025-09-19T19:51:53.830Z

NVD

Status : Received

Published: 2025-09-19T20:15:40.807

Modified: 2025-09-19T20:15:40.807

Link: CVE-2025-9081

Redhat

No data.

OpenCVE Enrichment

No data.

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