Cross-site Scripting (XSS) Vulnerability in Happy Chat

Advisory ID:	HTB23001
Product:	Happy Chat
Vendor:	TuttoPhp
Vulnerable Versions:	1.0 and probably prior
Tested Version:	1.0
Advisory Publication:	May 17, 2011 [without technical details]
Vendor Notification:	May 17, 2011
Public Disclosure:	May 31, 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 vulnerability in Happy Chat which could be exploited to perform cross-site scripting attacks. 1) Cross-site scripting (XSS) vulnerability in Happy Chat The vulnerability exists due to input sanitation error in the "nick" parameter in profilo.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. Exploitation example: http://[host]/profilo.php?nick=%22%3E%3Cscript%3Ealert%28document.cookie%29; %3C/script%3E
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 Try For Free 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 HTB23001 - https://www.immuniweb.com/advisory/HTB23001 - Cross-site Scripting (XSS) Vulnerability in Happy Chat [2] Happy Chat - tuttophp.altervista.org - Happy Chat is an online chat system. [3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.

Previous Security Advisories with CWE-79:

HTB22996: Cross-site Scripting (XSS) Vulnerabilities in TTChat

HTB22997: Multiple Vulnerabilities in A Really Simple Chat (ARSC)

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