CVE-2023-27266

LOW

Mattermost 5.12.0-7.6.9 - Authenticated Email Address Exposure via Teams API

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 2.7
EPSS 0.0025
EPSS Percentile 47.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (1)
mattermost/mattermost_server 5.12.0 - 7.7.0
Published Feb 27, 2023
Tracked Since Feb 18, 2026