UpHeron
All vulnerabilities

Servers and applications

CVE-2025-41395

Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate the props used by the RetrospectivePost custom post type in the Playbooks plugin, which allows an attacker to create a specially crafted post with maliciously crafted props and cause a denial of service (DoS) of the web app for all users.

Severity
High 7.5
Published
24 Apr 2025
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.11.11, 10.4.3, 10.5.1
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 9.11.0 before 9.11.11
  • From 10.4.0 before 10.4.3
  • From 10.5.0 before 10.5.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-41395
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-41395