VULNERABILITY INTELLIGENCE
CVE-2023-27266
CVSS score2.7 LOW
EPSS probability0.53%
CISA KEVNot currently listed
Published2023-02-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
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.
Weakness classification
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Primary references
- responsibledisclosure@mattermost.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory