UpHeron
All vulnerabilities

Servers and applications

CVE-2025-20051

Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate input when patching and duplicating a board, which allows a user to read any arbitrary file on the system via duplicating a specially crafted block in Boards.

Severity
Medium 6.5
Published
24 Feb 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.11.8, 10.2.3, 10.3.3, 10.4.2
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 9.11.0 before 9.11.8
  • From 10.2.0 before 10.2.3
  • From 10.3.0 before 10.3.3
  • From 10.4.0 before 10.4.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-20051
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-20051