CVE-2023-1774

Published: Mar 31, 2023Modified: Jun 17, 2026

5.4

Vector

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

Exploitability: 2.8 / Impact: 2.5

Source: NVD

Description

When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to a private channel.

Affected (2)

Products: Mattermost: Mattermost Server

Mattermost

1 product

Mattermost Server

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Mattermost Mattermost Server	Before 7.1.6
Mattermost Mattermost Server	Version 7.7.1

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.