Description
An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the update_team WebSocket event, aka MMSA-2020-0012.
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://mattermost.com/security-updates/
Scores
CVSS v3
5.3
EPSS
0.0024
EPSS Percentile
46.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
Status
published
Products (2)
mattermost/mattermost-server
0 - 5.20.0Go
mattermost/mattermost_server
< 5.20.0
Published
Jun 19, 2020
Tracked Since
Feb 18, 2026