CVE-2024-43780 — Improper Access Control in Mattermost Mattermost-server

CWE-284 — Improper Access Control6 documents5 sources
Severity
4.3MEDIUMNVD
EPSS
0.2%
top 56.15%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Github.com Mattermost Mattermost-serverGithub.com Mattermost Mattermost Server V8Mattermost Server+1 more
Timeline
PublishedAug 22
Latest updateAug 30

Description

Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.0, 9.8.x <= 9.8.2 fail to enforce permissions which allows a guest user with read access to upload files to a channel.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NExploitability: 2.8 | Impact: 1.4

Affected Packages4 packages

▶NVDmattermost/mattermost_server9.5.0 — 9.5.8+3
▶Gogithub.com/mattermost_mattermost-server9.5.0+incompatible — 9.5.8+incompatible+3
▶CVEListV5mattermost/mattermost9.9.0 — 9.9.1+3

🔴Vulnerability Details

4
OSV
Mattermost allows guest user with read access to upload files to a channel in github.com/mattermost/mattermost-server↗2024-08-30
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GHSA
Mattermost allows guest user with read access to upload files to a channel↗2024-08-22
▶
OSV
Mattermost allows guest user with read access to upload files to a channel↗2024-08-22
▶
CVEList
Unauthorized channel file upload↗2024-08-22
▶

📋Vendor Advisories

1
Red Hat
mattermost: permission enforcing failure allows a guest user with read access to upload files to a channel↗2024-08-22
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CVE-2024-43780 — Improper Access Control | cvebase