CVE-2024-4195 — Improper Access Control in Mattermost Mattermost-server

CWE-284 — Improper Access Control6 documents5 sources
Severity
2.7LOWNVD
EPSS
0.1%
top 65.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Github.com Mattermost Mattermost-serverMattermost ServerMattermost
Timeline
PublishedApr 26
Latest updateJun 5

Description

Mattermost versions 9.6.0, 9.5.x before 9.5.3, and 8.1.x before 8.1.12 fail to fully validate role changes, which allows an attacker authenticated as a team admin to promote guests to team admins via crafted HTTP requests.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:NExploitability: 1.2 | Impact: 1.4

Affected Packages3 packages

▶NVDmattermost/mattermost_server8.1.0 — 8.1.12+1
▶CVEListV5mattermost/mattermost9.5.0 — 9.5.2+2

🔴Vulnerability Details

4
OSV
Mattermost allows team admins to promote guests to team admins in github.com/mattermost/mattermost-server↗2024-06-05
▶
OSV
Mattermost allows team admins to promote guests to team admins↗2024-04-26
▶
GHSA
Mattermost allows team admins to promote guests to team admins↗2024-04-26
▶
CVEList
CVE-2024-4195: Mattermost versions 9↗2024-04-26
▶

📋Vendor Advisories

1
Red Hat
mattermost: fail to fully validate role changes leading to promote guests to team admins↗2024-04-26
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CVE-2024-4195 — Improper Access Control | cvebase