CVE-2023-5331

Published: Oct 9, 2023Modified: Jun 17, 2026

5.3

Vector

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

Exploitability: 3.9 / Impact: 1.4

Source: NVD

Description

Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information.

Affected (3)

Products: Mattermost: Mattermost Server

Mattermost

1 product

Mattermost Server

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Mattermost Mattermost Server	Before 7.8.11
Mattermost Mattermost Server	From 8.0.0 to 8.0.3
Mattermost Mattermost Server	From 8.1.0 to 8.1.2

Related CWEs

CWE-862

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

References (2)

https://mattermost.com/security-updates

Source: responsibledisclosure@mattermost.com

Vendor Advisory

https://mattermost.com/security-updates

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

Vendor Advisory

Timeline

No history available yet.