Improper Access Control Affecting github.com/mattermost/mattermost/server/platform/services/sharedchannel package, versions <9.5.7>=9.7.0 <9.7.6>=9.8.0 <9.8.2>=9.9.0 <9.9.1
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-GITHUBCOMMATTERMOSTMATTERMOSTSERVERPLATFORMSERVICESSHAREDCHANNEL-7577984
- published2 Aug 2024
- disclosed1 Aug 2024
- creditJuho Forsén
Introduced: 1 Aug 2024
CVE-2024-39839 Â (opens in a new tab)How to fix?
Upgrade github.com/mattermost/mattermost/server/platform/services/sharedchannel to version 9.5.7, 9.7.6, 9.8.2, 9.9.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Access Control due to the improper validation of user input in the remote username setting process. An attacker can manipulate the username to an arbitrary value by exploiting the lack of proper input sanitization when shared channels are enabled.