CVE-2025-54458

Medium

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.

SeverityMedium
CVSS5.0
Exploit probability—
ProductMattermost Confluence
PublishedAug 11, 2025
First seenAug 11, 2025

How to fix

Update
  • mattermost confluence1.5.0 or later
  • github.com/mattermost/mattermost-plugin-confluence1.5.0 or later

Affected products

ProductAffected versionsFixed in
mattermost confluencev < 1.5.01.5.0
github.com/mattermost/mattermost-plugin-confluenceGov < 1.5.01.5.0

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