tine before 2023.11.8, when an LDAP backend is used, allows anonymous remote attackers to obtain sensitive authentication information via setup.php because of getRegistryData in Setup/Frontend/Json.php. (An update is also available for the 2022.11 series.)
The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does.