Detections
Analytics

Mattermost Server 9.11.x < 9.11.6 / 10.0.x < 10.0.4 / 10.1.x < 10.1.4 / 10.2.x < 10.2.1 DoS (MMSA-2024-00402)

medium Nessus Plugin ID 214346

Synopsis

The remote host is missing a security update.

Description

The version of Mattermost Server installed on the remote host is 9.11.x prior to 9.11.6, 10.0.x prior to 10.0.4, 10.1.x prior to 10.1.4, or 10.2.x prior to 10.2.0. It is, therefore, affected by a denial of service vulnerability due to a failure to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the frontend via crafted malicious input.

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 9.11.6, 10.0.4, 10.1.4, 10.2.1, 10.3.0, or later.

See Also

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

Plugin Details

Severity: Medium

ID: 214346

File Name: mattermost_server_MMSA-2024-00402.nasl

Version: 1.1

Type: remote

Family: CGI abuses

Published: 1/17/2025

Updated: 1/17/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

CVSS Score Source: CVE-2025-21088

CVSS v3

Risk Factor: Medium

Base Score: 6.5

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

Vulnerability Information

CPE: cpe:/a:mattermost:mattermost_server

Required KB Items: installed_sw/Mattermost Server

Patch Publication Date: 12/16/2024

Vulnerability Publication Date: 1/15/2025

Reference Information

CVE: CVE-2025-21088

CWE: 704

IAVA: 2025-A-0017