UpHeron
All vulnerabilities

Servers and applications

CVE-2019-20889

An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It mishandles permissions for user-access token creation.

Severity
Medium 5.3
Published
19 Jun 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.10.5, 5.5.2, 5.6.3
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Version 5.7.0-rc6
  • Version 5.7.0-rc5
  • Version 5.7.0-rc4
  • Version 5.7.0-rc3
All 9 release lines
  • From 4.10.0 before 4.10.5
  • From 5.5.0 before 5.5.2
  • From 5.6.0 before 5.6.3
  • Version 5.7.0-rc1
  • Version 5.7.0-rc2
  • Version 5.7.0-rc3
  • Version 5.7.0-rc4
  • Version 5.7.0-rc5
  • Version 5.7.0-rc6

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-20889
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-20889