Multiple SQL injection vulnerabilities in showgallery.php in PhotoPost before 4.86 allow remote attackers to execute arbitrary SQL commands via the (1) cat or (2) ppuser parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/18744
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-0274
http://www.securityfocus.com/bid/12156
http://www.gulftech.org/?node=research&article_id=00063-01032005