Authorization Bypass Through User-Controlled Key Affecting github.com/mattermost/mattermost/server/channels/app package, versions >=9.11.0 <9.11.18>=10.5.0 <10.5.9
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERCHANNELSAPP-13003707
- published21 Sept 2025
- disclosed19 Sept 2025
- creditdaw10
Introduced: 19 Sep 2025
NewCVE-2025-9081 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/channels/app to version 9.11.18, 10.5.9 or higher.
Overview
github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the boards plugin download endpoint. An attacker can access and download files belonging to other users by enumerating UUIDs.