A broken access control vulnerability exists in the Mautic Stats API (/api/stats/{table}). The endpoint did not enforce permissions for several internal tables: an intended administrator-only restriction was never applied, and tables without an explicit permission mapping were readable by default. As a result, any authenticated API user, including one whose role grants no permissions, could read data from these tables, including the application audit log with actions performed by all users and change details that may contain contact personal data, stored visitor IP addresses and their geolocation details, and tracked redirect URLs and their channel mappings.
There are no official workarounds. To mitigate this vulnerability without upgrading, disable the API or restrict API access to trusted administrative users.