zenphoto 1.0.1 beta and earlier allow remote attackers to obtain sensitive information via a direct request for the (1) /photos/themes/default/ and (2) /photos/themes/testing/ URIs, which reveals the path in an error message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26220
http://www.securityfocus.com/archive/1/432718/100/0/threaded