download.php in McGallery 0.5b allows remote attackers to read arbitrary files and obtain script source code via the filename parameter.
Directory traversal vulnerability in mcGallery PRO 2.2 and earlier allows remote attackers to read arbitrary files via the language parameter.
Directory traversal vulnerability in admin.php in McGallery 1.1 allows remote attackers to read arbitrary files via a .. (dot dot) in the lang parameter.