| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/mattermost/mattermost-plugin-playbooks | ≥ 2.0.0< 1.41.0all versions | 1.41.0 |
| github.com/mattermost/mattermost-server | ≥ 10.4.0+incompatible≥ 10.5.0+incompatible≥ 9.11.0+incompatible | |
| github.com/mattermost/mattermost-server/v5 | all versions | |
| github.com/mattermost/mattermost-server/v6 | all versions | |
| github.com/mattermost/mattermost/server/v8 | ≥ 10.4.0≥ 10.5.0≥ 9.11.0< 8.0.0-20250218121836-2b5275d87136all versions | 8.0.0-20250218121836-2b5275d87136 |
| mattermost server | ≥ 10.4.0, < 10.4.3≥ 10.5.0, < 10.5.1≥ 9.11.0, < 9.11.11 | 10.4.310.5.19.11.11 |
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.
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