UpHeron
All vulnerabilities

Servers and applications

CVE-2019-20851

An issue was discovered in Mattermost Mobile Apps before 1.26.0. An attacker can use directory traversal with the Video Preview feature to overwrite arbitrary files on a device.

Severity
Critical 9.1
Published
19 Jun 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.26.0
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost
  • Every version before 1.26.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-20851
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-20851