CVE-2017-18874 — Path Traversal in Mattermost Mattermost-server

CWE-22 — Path Traversal5 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.7%
top 27.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Github.com Mattermost Mattermost-serverMattermost Server
Timeline
PublishedJun 19
Latest updateDec 15

Description

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can achieve directory traversal.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NExploitability: 1.2 | Impact: 5.2

Affected Packages2 packages

▶NVDmattermost/mattermost_server4.2.0 — 4.2.1+2
▶Gogithub.com/mattermost_mattermost-server4.2.0-rc1+incompatible — 4.2.0+incompatible+4

🔴Vulnerability Details

4
OSV
Mattermost Server is vulnerable to Directory Traversal by System Admins in github.com/mattermost/mattermost-server↗2025-12-15
▶
OSV
Mattermost Server is vulnerable to Directory Traversal by System Admins↗2022-05-24
▶
GHSA
Mattermost Server is vulnerable to Directory Traversal by System Admins↗2022-05-24
▶
CVEList
CVE-2017-18874: An issue was discovered in Mattermost Server before 4↗2020-06-19
▶
CVE-2017-18874 — Path Traversal | cvebase