UpHeron
All vulnerabilities

Servers and applications

CVE-2025-9072

Mattermost versions 10.10.x <= 10.10.1, 10.5.x <= 10.5.9, 10.9.x <= 10.9.4 fail to validate the redirect_to parameter, allowing an attacker to craft a malicious link that, once a user authenticates with their SAML provider, could post the user’s cookies to an attacker-controlled URL.

Severity
Medium 5.4
Published
15 Sept 2025
Last changed
19 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
10.5.10, 10.9.5, 10.10.2
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 10.5.0 before 10.5.10
  • From 10.9.0 before 10.9.5
  • From 10.10.0 before 10.10.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-9072
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-9072