CVEvulnerability

CVE-2024-39274

6.5 MEDIUM Published 2024-08-01 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-08-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.7 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-284

Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to properly validate that the channel that comes from the sync message is a shared channel, when shared channels are enabled, which allows a malicious remote to add users to arbitrary teams and channels

Affected configurations

• mattermost mattermost (>= 9.5.0 < 9.5.7) • mattermost mattermost (>= 9.7.0 < 9.7.6) • mattermost mattermost (>= 9.8.0 < 9.8.2) • mattermost mattermost 9.9.0

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References