CVE-2025-8285

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.

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://mattermost.com/security-updates	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mattermost:confluence:*:*:*:*:*:*:*:*

History

24 Sep 2025, 00:34

Type	Values Removed	Values Added
First Time		Mattermost confluence Mattermost
References	~~() https://mattermost.com/security-updates -~~	() https://mattermost.com/security-updates - Vendor Advisory
CPE		cpe:2.3:a:mattermost:confluence::::::::

12 Aug 2025, 14:25

Type	Values Removed	Values Added
Summary		(es) La versión <1.5.0 del complemento Mattermost Confluence no puede verificar el acceso del usuario al canal, lo que permite a los atacantes crear una suscripción al canal sin el acceso adecuado al canal a través de una llamada API al endpoint de creación de suscripción al canal.

11 Aug 2025, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-08-11 19:15

Updated : 2025-09-24 00:34

NVD link : CVE-2025-8285

Mitre link : CVE-2025-8285

CVE.ORG link : CVE-2025-8285

JSON object : View

Products Affected

mattermost

confluence

CWE

CWE-862

Missing Authorization

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