Open Redirect Affecting github.com/mattermost/mattermost/server/channels/web package, versions >=10.5.0 <10.5.10
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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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERCHANNELSWEB-12818373
- published17 Sept 2025
- disclosed15 Sept 2025
- creditJuho Forsén
Introduced: 15 Sep 2025
NewCVE-2025-9084 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/channels/web to version 10.5.10 or higher.
Overview
Affected versions of this package are vulnerable to Open Redirect via improper validation of redirect URLs in the OAuth login process. An attacker can redirect users to malicious sites by crafting specific OAuth login URLs.