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Cross-site Scripting (XSS) Vulnerability in WP e-Commerce

Advisory ID:HTB23031
Product:WP e-Commerce
Vendor:Instinct Entertainment
Vulnerable Versions:3.8.5 and probably prior
Tested Version:3.8.5
Advisory Publication:July 13, 2011 [without technical details]
Vendor Notification:July 13, 2011
Public Disclosure:August 3, 2011
Vulnerability Type:Cross-Site Scripting [CWE-79]
Risk Level:Medium
CVSSv2 Base Score:4.3 (AV:N/AC:M/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 vulnerability in WP e-Commerce, which can be exploited to perform cross-site scripting attacks.

1) Cross-site scripting (XSS) vulnerability in WP e-Commerce
Input passed via the cart_messages[] parameter to /wp-content/plugins/wp-e-commerce/wpsc-theme/wpsc-cart_widget.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser in context of an affected website.
Exploitation example:
http://[host]/wp-content/plugins/wp-e-commerce/wpsc-theme/wpsc-cart_widget.p hp?cart_messages[]=%3Cimg%20src=1%20onerror=javascript:alert%28document.cook ie%29%3E
Successful exploitation of the vulnerability requires that "register_globals" is enabled.

How to Detect Cross-Site Scripting Vulnerabilities
Website Security Test
  • GDPR & PCI DSS Test
  • Website CMS Security Test
  • CSP & HTTP Headers Check
  • WordPress & Drupal Scanning
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Solution:
Upgrade to version 3.8.8.5


References:
[1] High-Tech Bridge Advisory HTB23031 - https://www.immuniweb.com/advisory/HTB23031 - Cross-site Scripting (XSS) Vulnerability in WP e-Commerce
[2] WP e-Commerce - getshopped.org - WP e-Commerce remains the most popular, most robust e-commerce plugin for WordPress and is the ideal way to sell products, downloads or services online.
[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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