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Servers and applications

CVE-2023-2193

Mattermost fails to invalidate existing authorization codes when deauthorizing an OAuth2 app, allowing an attacker possessing an authorization code to generate an access token.

Severity
Critical 9.1
Published
20 Apr 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
  • Version 7.1.7
  • Version 7.7.3
  • Version 7.8.2
  • Version 7.9.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-2193
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-2193