CVEvulnerability

CVE-2024-39777

9.6 CRITICAL 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])
9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/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 disallow unsolicited invites to expose access to local channels, when shared channels are enabled, which allows a malicious remote to send an invite with the ID of an existing local channel, and that local channel will then become shared without the consent of the local admin.

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