Cross-site Scripting (XSS) Vulnerabilities in eShop for Wordpress

Advisory ID:HTB23034
Product:eShop for Wordpress
Vendor:Rich Pedley
Vulnerable Versions:6.2.8 and probably prior
Tested Version:6.2.8
Advisory Publication:July 20, 2011 [without technical details]
Vendor Notification:July 20, 2011
Public Disclosure:August 10, 2011
Vulnerability Type:Cross-Site Scripting [CWE-79]
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
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in eShop for Wordpress which could be exploited to perform cross-site scripting attacks.

1) Cross-site scripting (XSS) vulnerabilities in eShop for Wordpress
1.1 The vulnerability exists due to input sanitation error in the "eshoptemplate" parameter in wp-admin/admin.php (when "page" is set to "eshop-templates.php"). A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://[host]/wp-admin/admin.php?page=eshop-templates.php&eshoptemplate=%22% 3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
1.2 The vulnerability exists due to input sanitation error in the "action" parameter in wp-admin/admin.php (when "page" is set to "eshop-orders.php"). A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://[host]/wp-admin/admin.php?page=eshop-orders.php&view=1&action=%22%3E% 3Cscript%3Ealert%28document.cookie%29;%3C/script%3E
1.3 The vulnerability exists due to input sanitation error in the "viewemail" parameter in wp-admin/admin.php (when "page" is set to "eshop-orders.php"). A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://[host]/wp-admin/admin.php?page=eshop-orders.php&viewemail=%22%3E%3Csc ript%3Ealert%28document.cookie%29;%3C/script%3E

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Solution:
Upgrade to the most recent version


References:
[1] High-Tech Bridge Advisory HTB23034 - https://www.immuniweb.com/advisory/HTB23034 - Cross-site Scripting (XSS) Vulnerabilities in eShop for Wordpress
[2] eShop for Wordpress - http://wordpress.org/extend/plugins/eshop/ - eShop is an accessible shopping cart plugin for WordPress, packed with various features.
[3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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