CVE-2024-47003

MEDIUM5.4EPSS 0.48%

Mattermost fails to strip `embeds` from `metadata` when broadcasting `posted` events

發布日:2024/9/26修改日:2026/2/4
也稱為:GHSA-59hf-mpf8-pqjhBIT-mattermost-2024-47003CGA-vrh4-c4pq-8fp8GO-2024-3164

描述

Mattermost does not strip `embeds` from `metadata` when broadcasting `posted` events. This allows users to include arbitrary embeds in posts, which are then broadcasted via websockets. This can be exploited in many ways, for example to create permalinks with fully customizable content or to trigger a client Side Denial of Service (DoS) by sending a permalink with a non-string message. The advisory metadata references the appropriate go pseudo version available from pkg.go.dev

受影響套件(6)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
osvCVSS 3.1MEDIUM5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

參考連結(7)