CVEvulnerability

CVE-2024-36257

5.3 MEDIUM Published 2024-07-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2024-07-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
2.7 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-284

Description

Mattermost versions 9.5.x <= 9.5.5 and 9.8.0, when using shared channels with multiple remote servers connected, fail to check that the remote server A requesting the server B to update the profile picture of a user is the remote that actually has the user as a local one . This allows a malicious remote A to change the profile images of users that belong to another remote server C that is connected to the server A.

Affected configurations

• mattermost mattermost (>= 9.5.0 < 9.5.6) • mattermost mattermost 9.8.0

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References