Descrição
Mattermost versions 11.7.x <= 11.7.0, 11.6.x <= 11.6.2, 11.5.x <= 11.5.5, 10.11.x <= 10.11.17 Fail to validate channel ownership of an existing subscription before applying edits which allows an authenticated attacker to hijack subscriptions from channels they have no access to via a crafted PUT request to the subscription edit endpoint.. Mattermost Advisory ID: MMSA-2026-00650
CVSS 6.4EPSS 0.24%Risco 0.65
Ver fonte- Publicação
- 2026-06-22 14:17:51
- Versões afetadas
- <= 11.7.0, <= 11.6.2, <= 11.5.5, <= 10.11.17
- Tipo
- Aplicação web
- Vetor
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L