The remote host is vulnerable to a Script Injection attack.
The remote host is running Atomic Photo Album, a free PHP-based photo gallery. The installed version of Atomic Photo Album allows remote attackers to control the 'apa_module_basedir' variable used when including PHP code in the 'apa_phpinclude.inc.php' script. By leveraging this flaw, an attacker may be able to view arbitrary files on the remote host and execute arbitrary PHP code, possibly taken from third-party hosts.
Enable PHP's 'magic_quotes_gpc' setting and disable 'allow_url_fopen'.