CVE-2025-8285 - Vulnerability Details - OpenCVE

Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create channel subscription without proper access to the channel via API call to the create channel subscription endpoint.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Mattermost	Mattermost

No data.

No data.

References

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

History

Tue, 12 Aug 2025 12:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Mattermost Mattermost mattermost
Vendors & Products		Mattermost Mattermost mattermost

Mon, 11 Aug 2025 20:15:00 +0000

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

Mon, 11 Aug 2025 19:15:00 +0000

Type	Values Removed	Values Added
Description		Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create channel subscription without proper access to the channel via API call to the create channel subscription endpoint.
Title		Unauthorized Channel Subscription Creation in Mattermost Confluence Plugin
Weaknesses		CWE-862
References		https://mattermost.com/security-updates
Metrics		cvssV3_1 `{'score': 4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N'}`

MITRE

Status: PUBLISHED

Assigner: Mattermost

Published: 2025-08-11T18:57:07.701Z

Updated: 2025-08-11T19:41:20.762Z

Reserved: 2025-07-28T14:30:58.333Z

Link: CVE-2025-8285

Vulnrichment

Updated: 2025-08-11T19:41:16.871Z

NVD

Status : Received

Published: 2025-08-11T19:15:30.887

Modified: 2025-08-11T19:15:30.887

Link: CVE-2025-8285

Redhat

No data.

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