Liferay Portal and Liferay DXP fails to check origin of event messages
The Remote App module before 2.0.21 from Liferay Portal v7.4.3.4 through v7.4.3.8 and Liferay DXP 7.4 before update 5 does not check if the origin of event messages it receives matches the origin of the Remote App, allowing attackers to exfiltrate the CSRF token via a crafted event message.