CVE 2016-6625

An issue was discovered in phpMyAdmin. An attacker can determine whether a user is logged in to phpMyAdmin. The user's session, username, and password are not compromised by this vulnerability. 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.

See the CVE page on Mitre.org for more details.