All intelligence
// vulnerability record
cached · NVD via COSMOS syncCVE-2026-6517
MEDIUMpublished 2026-06-15 14:16 UTC · 10 days ago · modified 2026-06-16 16:54 UTC
6.3
CVSS / 10
// description
Mattermost Desktop App versions <=6.1 5.5.13.0 fail to restrict the allow list of domains to which NTLM credentials were forwarded to in the Mattermost Desktop App which allows any user on a server without the image proxy enabled to intercept other users credentials via embedding an image that routes to an external web server. Mattermost Advisory ID: MMSA-2026-00651
// cvss 3.1 vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
// weaknesses (CWE)
- CWE-522