You can find Liferay Portal using this tool.
Liferay Portal is produced by the worldwide Liferay engineering team, and involves many hours of development, testing, writing documentation, and working with the wider Liferay community of customers, partners, and open source developers.
An attacker might use the disclosed information to harvest specific security vulnerabilities for the version identified. There is an example exploit checker here.
Only use components that do not have known vulnerabilities, only use components that when combined to not introduce a security vulnerability, and ensure that a misconfiguration does not cause any vulnerabilities.