Detections
Analytics

Mattermost Server 9.11.x < 9.11.10 / 10.5.x < 10.5.2 / 10.6.0 (MMSA-2025-00453)

low Nessus Plugin ID 234796

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Synopsis

The remote host is missing a security update.

Description

The version of Mattermost Server installed on the remote host is prior to 9.11.10 or 10.5.2 / 10.6.0. It is, therefore, affected by a vulnerability as referenced in the MMSA-2025-00453 advisory.

 - Mattermost versions 10.5.x <= 10.5.1, 9.11.x <= 9.11.9 fail to enforce MFA checks in PUT /api/v4/users/user-id/mfa when the requesting user differs from the target user ID, which allows users with edit_other_users permission to activate or deactivate MFA for other users, even if those users have not set up MFA. (CVE-2025-27538)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Mattermost Server version 9.11.10 / 10.5.2 / 10.6.0 or later.

See Also

https://mattermost.com/security-updates/

Plugin Details

Severity: Low

ID: 234796

File Name: mattermost_server_MMSA-2025-00453.nasl

Version: 1.2

Type: remote

Family: CGI abuses

Published: 4/24/2025

Updated: 4/25/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.9

CVSS v2

Risk Factor: Low

Base Score: 1.7

Temporal Score: 1.3

Vector: CVSS2#AV:N/AC:H/Au:M/C:N/I:P/A:N

CVSS Score Source: CVE-2025-27538

CVSS v3

Risk Factor: Low

Base Score: 2.2

Temporal Score: 2

Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mattermost:mattermost_server

Required KB Items: installed_sw/Mattermost Server

Exploit Ease: No known exploits are available

Patch Publication Date: 3/18/2025

Vulnerability Publication Date: 4/16/2025

Reference Information

CVE: CVE-2025-27538

IAVA: 2025-A-0289