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Status published
Medium
CVE-2025-54458
Unauthorized Subscription Creation to Confluence Space in Mattermost Confluence Plugin
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Lorenzo Gallegos
References
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Affected Vendor
Mattermost
View all reports →Affected Software
Mattermost Confluence Plugin
Vulnerable Versions:
0, 1.5.0
Timeline
Official Publish:
August 11th, 2025
Last Modified:
August 11th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N