Photostand 1.2.0 allows remote attackers to obtain sensitive information via a ' (quote) character in (1) a PHPSESSID cookie or (2) the id parameter in an article action in index.php, which reveal the path in various error messages.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32702
http://www.vupen.com/english/advisories/2007/0752
http://www.securityfocus.com/archive/1/461150/100/0/threaded