CVE-2019-20851

Published: Jun 19, 2020Modified: Jun 17, 2026

9.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploitability: 3.9 / Impact: 5.2

Source: NVD

Description

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.

Affected (2)

Products: Mattermost: Mattermost

Mattermost

1 product

Mattermost

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Mattermost Mattermost	Before 1.26.0
Mattermost Mattermost	Before 1.26.0

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (2)

https://mattermost.com/security-updates/

Source: cve@mitre.org

Vendor Advisory

https://mattermost.com/security-updates/

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.