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Confluence CVE-2025-8285

MEDIUM
Missing Authorization (CWE-862)
2025-08-11 responsibledisclosure@mattermost.com
4.0
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.0 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
SUSE
5.3 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

3
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 19:06 vuln.today
CVE Published
Aug 11, 2025 - 19:15 nvd
MEDIUM 4.0

DescriptionCVE.org

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.

AnalysisAI

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. Rated medium severity (CVSS 4.0), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. 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. Affected products include: Mattermost Confluence.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.

Vendor StatusVendor

SUSE

Severity: Medium
Product Status
openSUSE Tumbleweed Fixed

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CVE-2025-8285 vulnerability details – vuln.today

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