Improper Validation of Specified Type of Input Affecting github.com/mattermost/mattermost-plugin-github/server package, versions <2.5.0-rc1
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-GITHUBCOMMATTERMOSTMATTERMOSTPLUGINGITHUBSERVER-14459404
- published17 Dec 2025
- disclosed17 Dec 2025
- creditUnknown
Introduced: 17 Dec 2025
CVE-2025-13352 (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost-plugin-github/server to version 2.5.0-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input due to the improper validation of plugin bot identity. An attacker can cause users to add reactions to arbitrary GitHub objects by sending crafted notification posts.