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Mattermost PlaybooksA specifically drafted Playbook could trigger large amount of webhook requests leading to Denial of Service

Risk 38
Severity
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Mattermost Playbooks plugin v1.24.0 and earlier fails to properly check the limit on the number of webhooks, which allows authenticated and authorized users to create a specifically drafted Playbook which could trigger a large amount of webhook requests leading to Denial of Service.

Remedy

Update Mattermost Playbooks Plugin to version v1.25.0 or higher.
First published (updated )
CVE-2022-1333

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Resources

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SecAlerts Pty Ltd.
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info@secalerts.co
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