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WordPress Easy Social Share Buttons 3.2.5 XSS

WordPress Easy Social Share Buttons 3.2.5 XSS
Posted Apr 24, 2016
Authored by Rahul Pratap Singh

Easy Social Share Buttons for WordPress version 3.2.5 suffers from multiple cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss
MD5 | 55b84a6120d208bda20d41c453c12c11

WordPress Easy Social Share Buttons 3.2.5 XSS

Change Mirror Download
## FULL DISCLOSURE


#Product :Easy Social Share Buttons for WordPress
#Exploit Author : Rahul Pratap Singh
#Version :3.2.5
#Home page Link :
http://codecanyon.net/item/easy-social-share-buttons-for-wordpress/6394476
#Website : 0x62626262.wordpress.com
#Linkedin : https://in.linkedin.com/in/rahulpratapsingh94
#Date : 21/4/2016

XSS Vulnerability:

----------------------------------------
Description:
----------------------------------------
Following parameters are not sanitized that leads to XSS Vulnerability.

----------------------------------------
Vulnerable Code:
----------------------------------------
File Name: testfiles/Easy Social Share Buttons for WordPress
v3.2.5/easy-social-share-buttons3/lib/modules/social-image-share/essb-social-image-share-selected.php
Found at line:16
echo '<link rel="canonical" href="'.$page_link.'"/>';
Found at line:17
echo '<meta property="og:url" content="'.$page_link.'"/>';
Found at line:18
echo '<meta property="twitter:url" content="'.$page_link.'"/>';
Found at line:20
echo '<meta property="og:image" content="http://'.$_GET['img'].'"/>';
Found at line:21
echo '<meta property="twitter:image" content="http://'.$_GET['img'].'"/>';
Found at line:38

echo '<meta http-equiv="refresh" content="0;url='.$_GET['url'].'">';

File Name: testfiles/Easy Social Share Buttons for WordPress
v3.2.5/easy-social-share-buttons3/lib/modules/social-metrics-lite/esml-render-results.php
Found at line:49

<input type="hidden" name="page" value="<?php echo $_REQUEST['page'] ?>" />

File Name: testfiles/Easy Social Share Buttons for WordPress
v3.2.5/easy-social-share-buttons3/lib/admin/essb-settings-shortcode-generator.php
Found at line:3
$active_shortcode = isset($_REQUEST['code']) ? $_REQUEST['code'] :
'easy-social-share';
Found at line:7
$scg->activate($active_shortcode);
Found at line:53

<input type="hidden" id="code" name="code" value="<?php echo
$active_shortcode; ?>"/>

File Name: testfiles/Easy Social Share Buttons for WordPress
v3.2.5/easy-social-share-buttons3/lib/core/options/essb-options-interface.php
Found at line:8
$active_section = isset($_REQUEST['section']) ? $_REQUEST['section'] : '';
Found at line:24

echo '<input id="section" name="section" type="hidden"
value="'.$active_section.'"/>';

File Name: testfiles/Easy Social Share Buttons for WordPress
v3.2.5/easy-social-share-buttons3/lib/core/options/essb-options-interface.php
Found at line:9
$active_subsection = isset($_REQUEST['subsection']) ?
$_REQUEST['subsection'] : '';
Found at line:25
echo '<input id="subsection" name="subsection" type="hidden"
value="'.$active_subsection.'"/>';
Found at line:26
echo '<input id="tab" name="tab" type="hidden" value="'.$current_tab.'"/>';

----------------------------------------

Fix:
Update to 3.5

Vulnerability Disclosure Timeline:
→ March 12, 2016 – Bug discovered, initial report to Vendor
→ March 14, 2016 – Vendor Acknowledged
→ March 30, 2016 – Vendor Deployed a Patch

Pub Ref:
https://0x62626262.wordpress.com/2016/04/21/easy-social-share-buttons-for-wordpress-xss-vulnerability/
http://fb.creoworx.com/essb/change-log/
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