Exposure of Sensitive Information to an Unauthorized Actor Affecting github.com/mattermost/mattermost-server package, versions <8.1.9>=9.0.0 <9.4.0


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVER-6352193
  • published1 Mar 2024
  • disclosed29 Feb 2024
  • creditJuho Nurminen

Introduced: 29 Feb 2024

CVE-2024-1952  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade github.com/mattermost/mattermost-server to version 8.1.9, 9.4.0 or higher.

Overview

github.com/mattermost/mattermost-server is an open source Slack-alternative in Golang and React.

Affected versions of this package are vulnerable to Exposure of Sensitive Information to an Unauthorized Actor due to insufficient sanitization of data associated with permalinks during the update of an ephemeral post by a plugin. An authenticated attacker with the capability to control the ephemeral post update can access the contents of individual posts in channels they are not a member of.

CVSS Scores

version 3.1