CVE-2025-41423 Unauthorized Playbooks Post Deletion in Mattermost Playbooks Plugin
Attackers can delete Playbooks bot posts without authorization due to missing permission checks in the Mattermost Playbooks plugin API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-41423?
CVE-2025-41423 is a low-severity missing authorization vulnerability in Mattermost Mattermost Server, published on 24 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
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 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.
Weakness: CWE-863
Which versions are affected by CVE-2025-41423?
21 open source packages ship an affected version, including github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-plugin-playbooks and github.com/mattermost/mattermost-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/mattermost/mattermost/server/v8 Go | All versions | None |
github.com/mattermost/mattermost/server/v8 Go | All versions | 8.0.0-20250218121836-2b5275d87136 |
github.com/mattermost/mattermost/server/v8 Go | All versions | 8.0.0-20250218121836-2b5275d87136 |
github.com/mattermost/mattermost/server/v8 Go | All versions | 8.0.0-20250218121836-2b5275d87136 |
github.com/mattermost/mattermost/server/v8 Go | From 10.4.0 | None |
github.com/mattermost/mattermost/server/v8 Go | From 10.4.0 | None |
15 more packages
github.com/mattermost/mattermost/server/v8 Go | From 10.5.0 | None |
github.com/mattermost/mattermost/server/v8 Go | From 10.5.0 | None |
github.com/mattermost/mattermost/server/v8 Go | From 9.11.0 | None |
github.com/mattermost/mattermost/server/v8 Go | From 9.11.0 | None |
github.com/mattermost/mattermost-plugin-playbooks Go | All versions | None |
github.com/mattermost/mattermost-plugin-playbooks Go | All versions | 1.41.0 |
github.com/mattermost/mattermost-plugin-playbooks Go | All versions | 1.41.0 |
github.com/mattermost/mattermost-plugin-playbooks Go | All versions | 1.41.0 |
github.com/mattermost/mattermost-plugin-playbooks Go | From 2.0.0 | None |
github.com/mattermost/mattermost-plugin-playbooks Go | From 2.0.0 | None |
github.com/mattermost/mattermost-server Go | From 10.4.0+incompatible | None |
github.com/mattermost/mattermost-server Go | From 10.5.0+incompatible | None |
github.com/mattermost/mattermost-server Go | From 9.11.0+incompatible | None |
github.com/mattermost/mattermost-server/v5 Go | All versions | None |
github.com/mattermost/mattermost-server/v6 Go | All versions | None |
Products include Mattermost Mattermost Server.
How do I fix CVE-2025-41423?
Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250218121836-2b5275d87136 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-41423 being exploited?
There is no known exploitation of CVE-2025-41423 in the wild and no public exploit code.
Other vulnerabilities in Mattermost Mattermost Server
- CVE-2025-12419 Account takeover on OAuth/OpenID-enabled servers
- CVE-2025-12421 Account Takeover via Code Exchange Endpoint
- CVE-2025-4981 Path Traversal Leading to RCE by Any Authenticated Mattermost User
- CVE-2025-20051 Arbitrary file read via block duplication in Mattermost Boards
- CVE-2025-25279 Arbitrary file read in Mattermost Boards via import & export board archive
Sources
Also known as GHSA-fr22-5377-f3p7, GO-2025-3644.