CVE-2023-27266

Published: Feb 27, 2023Modified: Jun 17, 2026

2.7

Vector

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

Exploitability: 1.2 / Impact: 1.4

Source: NVD

Description

Mattermost fails to honor the ShowEmailAddress setting when constructing a response to the /api/v4/users/me/teams API endpoint, allowing an attacker with team admin privileges to learn the team owner's email address in the response.

Affected (1)

Products: Mattermost: Mattermost Server

Mattermost

1 product

Mattermost Server

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Mattermost Mattermost Server	From 5.12.0 to 7.7.0

Related CWEs

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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.