Cross-site scripting (XSS) vulnerability in index.php in Greg Neustaetter gCards 1.45 and earlier allows remote attackers to inject arbitrary web script or HTML via the lang[*][file] parameter, which is injected into an error message. NOTE: this issue might be resultant from CVE-2006-1346.
https://www.exploit-db.com/exploits/1595
https://exchange.xforce.ibmcloud.com/vulnerabilities/25343
http://www.vupen.com/english/advisories/2006/1015