Description
Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying application view in the Mattermost Desktop App which allows a malicious server or plugin to crash the desktop client via invoking {{window.close()}} in the renderer context, leading to a denial of service condition at the client level. Mattermost Advisory ID: MMSA-2026-00633
CVSS 3.5EPSS 0.17099999999999999%Risk 0.36
View source- Published
- 2026-05-18 09:16:23
- Affected versions
- <= 6.1, <= 6.0.1, <= 5.4.13.0
- Type
- Installed app
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L