UpHeron
All vulnerabilities

Servers and applications

CVE-2023-2787

Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API.

Severity
Medium 6.5
Published
16 Jun 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost
  • From 7.1.0 up to 7.1.9
  • From 7.8.0 up to 7.8.4
  • From 7.9.0 up to 7.9.3
  • Version 7.10.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-2787
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-2787