Descripción
Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to validate that an assigned incoming webhook user has access to the target team or channel, which allows a requester with webhook management permissions to create posts or direct messages attributed to another user via crafted incoming webhook configuration and payloads.. Mattermost Advisory ID: MMSA-2026-00683
CVSS 4.9EPSS 0.21%Riesgo 0.5
Ver fuente- Publicación
- 2026-07-13 09:16:25
- Versiones afectadas
- <= 11.7.2, <= 11.6.4, <= 10.11.19
- Tipo
- Aplicación web
- Vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N