CVE-2025-41395

Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate the props used by the RetrospectivePost custom post type in the Playbooks plugin, whichallows an attacker to create a specially crafted post with maliciously crafted propsand cause a denial of service (DoS) of the web app for all users.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
MattermostCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA-ADPADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
VendorProductVersion
mattermostmattermost_server
9.11.0 ≤
𝑥
< 9.11.11
mattermostmattermost_server
10.4.0 ≤
𝑥
< 10.4.3
mattermostmattermost_server
10.5.0 ≤
𝑥
< 10.5.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://mattermost.com/security-updates