Liferay Portal 7.4.0 through 7.4.3.111, and older unsupported versions, and Liferay DXP 2023.Q4.0, 2023.Q3.1 through 2023.Q3.4, 7.4 GA through update 92 and 7.3 GA through update 35, and older unsupported versions does not limit access to APIs before a user has changed their initial password, which allows remote users to access and edit content via the API.
The product uses default passwords for potentially critical functionality.