CVE-2025-49222mediumCWE-434

Mattermost Shared Channel Upload Type Validation Bypass

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 6.8epss 0.3%

probabilidad de explotación

0.3%top 77% de las CVE

explotación observada

noninguna fuente lo reporta

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2, 10.10.x <= 10.10.0 fail to validate upload types in remote cluster upload sessions which allows a system admin to upload non-attachment file types via shared channels that could potentially be placed in arbitrary filesystem directories.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

Productos afectados

Mattermost · Mattermost

Referencias

https://mattermost.com/security-updates