Skip to content
OpenAdvisories
Medium · 6.5 CVE-2025-41395 EUVD-2025-12104GHSA-3g36-gf7c-75qwGO-2025-3642

Webapp DoS via malicious retrospective post in Playbooks

Published Apr 24, 2025 · Updated Apr 24, 2025 · Assigned by Mattermost

Vendor: Mattermost Product: Mattermost Package: github.com/mattermost/mattermost-plugin-playbooks Package: github.com/mattermost/mattermost-server Package: github.com/mattermost/mattermost-server/v5 Package: github.com/mattermost/mattermost-server/v6 Package: github.com/mattermost/mattermost/server/v8 Ecosystem: Go

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 products

VendorProductAffectedFixed
Mattermost Mattermost 10.4.0 – ≤ 10.4.2, 10.5.0, 9.11.0 – ≤ 9.11.10 10.6.0

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

openSUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed govulncheck-vulndb 0.0.20250424T181457-1.1 openSUSE-SU-2025:15033-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/mattermost/mattermost-plugin-playbooks >= 2.0.0 — GHSA-3g36-gf7c-75qw
Go github.com/mattermost/mattermost-plugin-playbooks < 1.41.0 1.41.0 GHSA-3g36-gf7c-75qw
Go github.com/mattermost/mattermost-plugin-playbooks all versions — GO-2025-3642
Go github.com/mattermost/mattermost-server >= 9.11.0+incompatible — GO-2025-3642
Go github.com/mattermost/mattermost-server >= 10.4.0+incompatible — GO-2025-3642
Go github.com/mattermost/mattermost-server >= 10.5.0+incompatible — GO-2025-3642
Go github.com/mattermost/mattermost-server/v5 all versions — GO-2025-3642
Go github.com/mattermost/mattermost-server/v6 all versions — GO-2025-3642
Go github.com/mattermost/mattermost/server/v8 < 8.0.0-20250218121836-2b5275d87136 8.0.0-20250218121836-2b5275d87136 GHSA-3g36-gf7c-75qw
Go github.com/mattermost/mattermost/server/v8 >= 10.4.0 — GHSA-3g36-gf7c-75qw
Go github.com/mattermost/mattermost/server/v8 >= 10.5.0 — GHSA-3g36-gf7c-75qw
Go github.com/mattermost/mattermost/server/v8 >= 9.11.0 — GHSA-3g36-gf7c-75qw
Go github.com/mattermost/mattermost/server/v8 all versions — GO-2025-3642

Advisories 1

References