PivotX before 2.3.11 does not validate the new file extension when renaming a file with multiple extensions, which allows remote attackers to execute arbitrary code by uploading a crafted file, as demonstrated by a file named foo.php.php.
Cross-site scripting (XSS) vulnerability in the form method in modules/formclass.php in PivotX before 2.3.11 allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO, related to the "PHP_SELF" variable and form actions.