Detections
Analytics

Mattermost Server 9.11.x < 9.11.10 / 10.4.x < 10.4.3 / 10.5.x < 10.5.1 / 10.6.0 (MMSA-2024-00401)

low Nessus Plugin ID 234801

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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, 10.4.3, or 10.5.1 / 10.6.0. It is, therefore, affected by a vulnerability as referenced in the MMSA-2024-00401 advisory.

 - Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
 (CVE-2025-31363)

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 / 10.4.3 / 10.5.1 / 10.6.0 or later.

See Also

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

Plugin Details

Severity: Low

ID: 234801

File Name: mattermost_server_MMSA-2024-00401.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: 3.2

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2025-31363

CVSS v3

Risk Factor: Low

Base Score: 3

Temporal Score: 2.6

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/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: 3/17/2025

Vulnerability Publication Date: 4/16/2025

Reference Information

CVE: CVE-2025-31363

IAVA: 2025-A-0289