Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail prevent disclosure of created user password which allows a malicious attacker to impersonate a user via the use of some of those passwords.. Mattermost Advisory ID: MMSA-2026-00614
Exploitability
AV:NAC:LPR:HUI:NScope
S:UImpact
C:HI:HA:N6.5/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:NOther