CVE-2025-41395
MEDIUM6.5EPSS 0.13%Mattermost Playbooks fails to properly validate the props used by the RetrospectivePost custom post type
Published: 4/24/2025Modified: 4/1/2026
Description
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, which allows an attacker to create a specially crafted post with maliciously crafted props and cause a denial of service (DoS) of the web app for all users.
Affected packages (7)
- Go/github.com/mattermost/mattermost-plugin-playbooks>= 2.0.0
- Go/github.com/mattermost/mattermost-plugin-playbooksfrom 0
- Go/github.com/mattermost/mattermost-server>= 9.11.0+incompatible
- Go/github.com/mattermost/mattermost-server/v5from 0
- Go/github.com/mattermost/mattermost-server/v6from 0
- Go/github.com/mattermost/mattermost/server/v8from 0
- Go/github.com/mattermost/mattermost/server/v8from 0, < 8.0.0-20250218121836-2b5275d87136
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References (6)
- ADVISORYhttps://github.com/advisories/GHSA-3g36-gf7c-75qw
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-41395
- PATCHhttps://github.com/mattermost/mattermost-plugin-playbooks
- WEBhttps://github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8a
- WEBhttps://github.com/mattermost/mattermost-plugin-playbooks/commit/4c823090e281cb9c0d5c17ee2e5db275117540d1
- WEBhttps://mattermost.com/security-updates