Vulnerability · Published Apr 24, 2025 · Assigned by Mattermost
CVE-2025-41395Webapp DoS via malicious retrospective post in Playbooks
Medium 6.5
In plain English
A medium-severity security flaw 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 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-plugin-playbooks | 1.41.0 | GHSA-3g36-gf7c-75qw |
| Go | github.com/mattermost/mattermost-plugin-playbooks | no fix listed | GHSA-3g36-gf7c-75qw |
| Go | github.com/mattermost/mattermost-plugin-playbooks | 1.41.0 | GO-2025-3642 |
| Go | github.com/mattermost/mattermost-plugin-playbooks | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost-server | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost-server | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost-server | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250218121836-2b5275d87136 | GO-2025-3642 |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2025-3642 |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GHSA-3g36-gf7c-75qw |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GHSA-3g36-gf7c-75qw |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GHSA-3g36-gf7c-75qw |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250218121836-2b5275d87136 | GHSA-3g36-gf7c-75qw |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 10.4.0 – through 10.4.210.5.09.11.0 – through 9.11.10 |
Weakness: CWE-1287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H