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Cross-Site Scripting (XSS) in Tweet Blender Wordpress Plugin
From: High-Tech Bridge Security Research <advisory () htbridge com>
Date: Fri, 15 Nov 2013 17:10:01 +0100 (CET)

Advisory ID: HTB23180
Product: Tweet Blender Wordpress Plugin
Vendor: kirilln
Vulnerable Version(s): 4.0.1 and probably prior
Tested Version: 4.0.1
Advisory Publication:  October 25, 2013  [without technical details]
Vendor Notification: October 25, 2013 
Vendor Patch: November 13, 2013 
Public Disclosure: November 15, 2013 
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2013-6342
Risk Level: Low 
CVSSv2 Base Score: 2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status: Fixed by Vendor
Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ ) 

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

Advisory Details:

High-Tech Bridge Security Research Lab discovered vulnerability in Tweet Blender Wordpress Plugin, which can be 
exploited to perform Cross-Site Scripting (XSS) attacks.


1) Cross-Site Scripting (XSS) in Tweet Blender Wordpress Plugin: CVE-2013-6342

1.1 The vulnerability exists due to insufficient sanitisation of user-supplied data in "tb_tab_index" HTTP POST 
parameter passed to "/wp-admin/options-general.php" script. A remote attacker can trick a logged-in administrator to 
open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable 
website.

The exploitation example below uses the "alert()" JavaScript function to display "imuniweb" word:


<form action="http://[host]/wp-admin/options-general.php?page=tweet-blender/admin-page.php"; method="post" name="main">
<input type="hidden" name="tb_tab_index"  value='</script><script>alert("immuniweb");</script>'>
<input type="submit" id="btn">
</form>


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

Solution:

Update to Tweet Blender 4.0.2

More Information:
http://wordpress.org/plugins/tweet-blender/changelog/

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

References:

[1] High-Tech Bridge Advisory HTB23180 - https://www.htbridge.com/advisory/HTB23180 - Cross-Site Scripting (XSS) in 
Tweet Blender Wordpress Plugin.
[2] Tweet Blender Wordpress Plugin - http://wordpress.org/plugins/tweet-blender/ - Provides several Twitter widgets: 
show your own tweets, show tweets relevant to post's tags, show tweets for Twitter lists, show tweets for hasht .
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public 
use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE 
is a formal list of software weakness types.
[5] ImmuniWeb® - http://www.htbridge.com/immuniweb/ - is High-Tech Bridge's proprietary web application security 
assessment solution with SaaS delivery model that combines manual and automated vulnerability testing.

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

Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. Details 
of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the 
Advisory is available on web page [1] in the References.


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