An issue was discovered in phpMyAdmin. An attacker can determine the phpMyAdmin host location through the file url.php. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.
https://www.phpmyadmin.net/security/PMASA-2016-50
https://security.gentoo.org/glsa/201701-32
https://lists.debian.org/debian-lts-announce/2019/06/msg00009.html