CVE-2025-54458

Unauthorized Subscription Creation to Confluence Space in Mattermost Confluence Plugin

Published Aug 11, 2025 CVSS 3.1 · 5 Medium EPSS < 1% KEV · Not listed
Description
Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a Confluence space the user does not have access to via the create subscription endpoint.

Remediation

Vendor Solution

Update Mattermost Confluence Plugin to version 1.5.0 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-24173 Mattermost Confluence Plugin has Missing Authorization vulnerability
Github GHSA Github GHSA GHSA-j66h-xhpr-7q5g Mattermost Confluence Plugin has Missing Authorization vulnerability
References
History
Type Values Removed Values Added
First Time appeared Mattermost confluence
CPEs cpe:2.3:a:mattermost:confluence:*:*:*:*:*:mattermost:*:*
Vendors & Products Mattermost confluence
Type Values Removed Values Added
First Time appeared Mattermost
Mattermost mattermost
Vendors & Products Mattermost
Mattermost mattermost
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the Confluence space which allows attackers to create a subscription for a Confluence space the user does not have access to via the create subscription endpoint.
Title Unauthorized Subscription Creation to Confluence Space in Mattermost Confluence Plugin
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Aug 11, 2025, 7:38 PM
Reserved
Jul 28, 2025, 2:28 PM
Status
Analyzed
Published
Aug 11, 2025, 7:15 PM
Modified
Jun 17, 2026, 9:40 AM