Improper Access Control Affecting github.com/mattermost/mattermost/server/platform/services/sharedchannel package, versions >=9.8.0 <9.8.3>=9.10.0 <9.10.1>=9.9.0 <9.9.2>=9.5.0 <9.5.8


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERPLATFORMSERVICESSHAREDCHANNEL-7786374
  • published22 Aug 2024
  • disclosed22 Aug 2024
  • creditJuho Forsén

Introduced: 22 Aug 2024

CVE-2024-32939  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade github.com/mattermost/mattermost/server/platform/services/sharedchannel to version 9.8.3, 9.10.1, 9.9.2, 9.5.8 or higher.

Overview

Affected versions of this package are vulnerable to Improper Access Control when shared channels are enabled, fail to redact remote users' original email addresses stored in user props when email addresses are otherwise configured not to be visible in the local server. An attacker can exploit this to gain unauthorized access to sensitive information by leveraging the visibility of email addresses.

CVSS Scores

version 4.0
version 3.1