A server-side request forgery (SSRF) vulnerability exist in the Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.7, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13 and 2024.Q1.1 through 2024.Q1.20 that affects custom object attachment fields. This flaw allows an attacker to manipulate the application into making unauthorized requests to other instances, creating new object entries that link to external resources.
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.