CVEvulnerability

CVE-2025-49222

6.8 MEDIUM Published 2025-08-21 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-08-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
Weaknesses
CWE-434

Description

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.

Affected configurations

• mattermost mattermost server (>= 9.11.0 < 9.11.18) • mattermost mattermost server (>= 10.5.0 < 10.5.9) • mattermost mattermost server (>= 10.8.0 < 10.8.4) • mattermost mattermost server (>= 10.9.0 < 10.9.3) • mattermost mattermost server 10.10.0

Related

Weakness · CWE (1)

  • CWE-434 Unrestricted Upload of File with Dangerous Type weakness

References