UpHeron
All vulnerabilities

Servers and applications

CVE-2023-1775

When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.

Severity
Medium 6.5
Published
31 Mar 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
7.1.6
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Every version before 7.1.6
  • Version 7.7.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-1775
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-1775