Detections
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Mattermost Server 9.11.x < 9.11.7 / 10.4.x < 10.4.2 (MMSA-2025-00414)

high Nessus Plugin ID 216938

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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 9.11.7 or 10.4.2. It is, therefore, affected by a vulnerability as referenced in the MMSA-2025-00414 advisory.

 - Mattermost versions 9.11.x <= 9.11.6, 10.4.x <= 10.4.1 fail to invalidate all active sessions when converting a user to a bot, with allows the converted user to escalate their privileges depending on the permissions granted to the bot. (CVE-2025-1412)

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 9.11.7 / 10.4.2 or later.

See Also

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

Plugin Details

Severity: High

ID: 216938

File Name: mattermost_server_MMSA-2025-00414.nasl

Version: 1.3

Type: remote

Family: CGI abuses

Published: 2/28/2025

Updated: 10/2/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2025-1412

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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: 1/23/2025

Vulnerability Publication Date: 2/24/2025

Reference Information

CVE: CVE-2025-1412

IAVB: 2025-A-0133-S