Unrestricted File Size Import Vulnerability in Mattermost Slack Import Feature

CVE-2022-2406 · MEDIUM Severity

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

The legacy Slack import feature in Mattermost version 6.7.0 and earlier fails to properly limit the sizes of imported files, which allows an authenticated attacker to crash the server by importing large files via the Slack import REST API.

Learn more about our Cis Benchmark Audit For Server Software.