source: https://www.securityfocus.com/bid/17967/info
 
Gphotos is prone to multiple input-validation vulnerabilities. The issues include information-disclosure and cross-site scripting vulnerabilities. These issues are due to a failure in the application to properly sanitize user-supplied input. 
 
A successful exploit of these vulnerabilities could allow an attacker to compromise the application, access or modify data, or steal cookie-based authentication credentials. Other attacks are also possible.
 
http://www.example.com/diapo.php?rep=[xss]