Piwigo contains a flaw that allows a remote cross-site scripting (XSS) attack. This flaw exists because the application does not validate the 'username_or_email' parameter upon submission to the password.php script. This may allow a user to create a specially crafted request that would execute arbitrary script code in a user's browser within the trust relationship between their browser and the server.
Remote / Network Access
Loss of Integrity
OSVDB is not aware of a solution for this vulnerability. Secunia has reported that the vendor issued a fix in 2.4.4, but it was ineffective.