UpHeron
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Servers and applications

CVE-2020-14450

An issue was discovered in Mattermost Server before 5.22.0. The markdown renderer allows attackers to cause a denial of service (client-side), aka MMSA-2020-0017.

Severity
High 7.5
Published
19 Jun 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
5.22.0
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Every version before 5.22.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-14450
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-14450