CVE-2025-9084 - Vulnerability Details - OpenCVE

Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites via crafted OAuth login URLs

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00029.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Fixes

Solution

Update Mattermost to versions 10.11.0, 10.5.10 or higher.

Workaround

No workaround given by the vendor.

References

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

History

Mon, 15 Sep 2025 13:15:00 +0000

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

Mon, 15 Sep 2025 10:45:00 +0000

Type	Values Removed	Values Added
Description		Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites via crafted OAuth login URLs
Title		Open redirect in OAuth login
Weaknesses		CWE-601
References		https://mattermost.com/security-updates
Metrics		cvssV3_1 `{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N'}`

MITRE

Status: PUBLISHED

Assigner: Mattermost

Published: 2025-09-15T10:22:30.184Z

Updated: 2025-09-15T12:24:41.138Z

Reserved: 2025-08-15T16:15:40.630Z

Link: CVE-2025-9084

Vulnrichment

Updated: 2025-09-15T12:24:36.604Z

NVD

Status : Received

Published: 2025-09-15T11:15:34.350

Modified: 2025-09-15T11:15:34.350

Link: CVE-2025-9084

Redhat

No data.

OpenCVE Enrichment

No data.

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