UpHeron
All vulnerabilities

Servers and applications

CVE-2023-2793

Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.

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 7.8.0 up to 7.8.3
  • From 7.9.0 up to 7.9.2
  • Version 7.10.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-2793
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-2793