GHSA-vg6q-84p8-qvqhMediumCVSS 4.3

Mattermost allows a user on a remote to set their remote username prop to an arbitrary string

Published
August 1, 2024
Last Modified
August 7, 2024

🔗 CVE IDs covered (1)

CVE-2024-39839 →

📋 Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.

🎯 Affected products4

  • go/github.com/mattermost/mattermost/server/v8:>= 9.5.0, < 9.5.7
  • go/github.com/mattermost/mattermost/server/v8:>= 9.7.0, < 9.7.6
  • go/github.com/mattermost/mattermost/server/v8:>= 9.8.0, < 9.8.2
  • go/github.com/mattermost/mattermost/server/v8:= 9.9.0

🔗 References (4)