UpHeron
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Servers and applications

CVE-2021-37859

Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

Severity
Medium 6.1
Published
5 Aug 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
5.34.5, 5.35.4, 5.36.1
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost
  • From 5.32.0 before 5.34.5
  • From 5.35.0 before 5.35.4
  • From 5.36.0 before 5.36.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-37859
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-37859