CVE-2018-21260

LOW

Mattermost Server 4.6.0-4.6.2 - Exposure of Sensitive Information via WebSocket Events

Title source: llm
STIX 2.1

Description

An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3. WebSocket events were accidentally sent during certain user-management operations, violating user privacy.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://mattermost.com/security-updates/

Scores

CVSS v3 2.7
EPSS 0.0023
EPSS Percentile 46.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Details

CWE
CWE-200
Status published
Products (1)
mattermost/mattermost_server 4.6.0 - 4.6.3
Published Jun 19, 2020
Tracked Since Feb 18, 2026