Vulnerability · Published Aug 1, 2024 · Assigned by Mattermost

CVE-2024-41144Malicious remote can create/update/delete arbitrary posts in arbitrary channels

Medium 5.5

In plain English

A medium-severity improper access control in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.4%top 69.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to properly validate synced posts, when shared channels are enabled,  which allows a malicious remote to create/update/delete arbitrary posts in arbitrary channels

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/mattermost/mattermost5.3.2-0.20240619142046-8181a9ddffc0GHSA-vg67-chm7-8m3j
Gogithub.com/mattermost/mattermost-server9.5.7+incompatible, 9.7.6+incompatible, 9.8.2+incompatible, 9.9.1+incompatibleGO-2024-3023
Gogithub.com/mattermost/mattermost-server/v5no fix listedGO-2024-3023
Gogithub.com/mattermost/mattermost-server/v6no fix listedGO-2024-3023
Gogithub.com/mattermost/mattermost/server/v88.0.0-20240619142046-8181a9ddffc0GHSA-vg67-chm7-8m3j
Gogithub.com/mattermost/mattermost/server/v89.5.7GHSA-vg67-chm7-8m3j
Gogithub.com/mattermost/mattermost/server/v8no fix listedGO-2024-3023
Gogithub.com/mattermost/mattermost/server/v89.7.6GHSA-vg67-chm7-8m3j
Gogithub.com/mattermost/mattermost/server/v89.8.2GHSA-vg67-chm7-8m3j
Gogithub.com/mattermost/mattermost/server/v89.9.1GHSA-vg67-chm7-8m3j

Affected products (as reported)

VendorProductVersions
Mattermost Mattermost 9.9.09.5.0 – through 9.5.69.7.0 – through 9.7.59.8.0 – through 9.8.1

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L

References