| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/mattermost/mattermost-server | all versions | |
| github.com/mattermost/mattermost-server/v5 | all versions | |
| github.com/mattermost/mattermost-server/v6 | all versions | |
| github.com/mattermost/mattermost/server/v8 | < 8.1.7all versions | 8.1.7 |
| mattermost server | < 8.1.7 | 8.1.7 |
Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.
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