| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/mattermost/mattermost-plugin-boards | < 0.0.0-20260108044135-57c5be5b6ef5 | 0.0.0-20260108044135-57c5be5b6ef5 |
| mattermost server | ≥ 11.0.0, ≤ 11.0.3≥ 11.1.0, < 11.2.3≥ 11.3.0, < 11.3.1< 10.11.11 | 11.2.311.3.110.11.11 |
Mattermost Plugins versions <=11.3 11.0.3 11.2.2 10.10.11.0 fail to implement authorisation checks on comment block modifications, which allows an authorised attacker with editor permission to modify comments created by other board members. Mattermost Advisory ID: MMSA-2025-00559
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