phpMyAdmin is a web-based management tool for MySQL databases.
Multiple vulnerabilities have been reported in phpMyAdmin:
A remote unauthorized attacker could exploit the first vulnerability to execute arbitrary code with the privileges of the user running phpMyAdmin and conduct Cross-Site Scripting attacks using the second vulnerability.
Removing the "scripts/setup.php" file protects you from CVE-2009-1151.
All phpMyAdmin users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/phpmyadmin-2.11.9.5"