CVE-2017-18916 — Incorrect Permission Assignment in Mattermost Mattermost-server

CWE-732 — Incorrect Permission AssignmentCWE-284 — Improper Access Control5 documents4 sources
Severity
5.3MEDIUMNVD
EPSS
0.2%
top 58.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Github.com Mattermost Mattermost-serverMattermost Server
Timeline
PublishedJun 19
Latest updateFeb 17

Description

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. API endpoint access control does not honor an integration permission restriction.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages2 packages

▶NVDmattermost/mattermost_server3.7.0 — 3.7.5+2
▶Gogithub.com/mattermost_mattermost-server3.7.0+incompatible — 3.7.5+incompatible+4

🔴Vulnerability Details

4
OSV
Mattermost Server has Improper Authorization for Integration Requests in github.com/mattermost/mattermost-server↗2026-02-17
▶
OSV
Mattermost Server has Improper Authorization for Integration Requests↗2022-05-24
▶
GHSA
Mattermost Server has Improper Authorization for Integration Requests↗2022-05-24
▶
CVEList
CVE-2017-18916: An issue was discovered in Mattermost Server before 3↗2020-06-19
▶
CVE-2017-18916 — Incorrect Permission Assignment | cvebase