Cross-site scripting (XSS) vulnerability in include/functionsmetadata.inc.php in Piwigo before 2.4.6 allows remote attackers to inject arbitrary web script or HTML via the Make field in IPTC Exif metadata within an image uploaded to the Community plugin.
Multiple cross-site request forgery (CSRF) vulnerabilities in Piwigo before 2.6.2 allow remote attackers to hijack the authentication of administrators for requests that use the (1) pwg.groups.addUser, (2) pwg.groups.deleteUser, (3) pwg.groups.setInfo, (4) pwg.users.setInfo, (5) pwg.permissions.add, or (6) pwg.permissions.remove method.
Directory traversal vulnerability in install.php in Piwigo before 2.4.7 allows remote attackers to read and delete arbitrary files via a .. (dot dot) in the dl parameter.