Unrestricted file upload vulnerability in the patient photograph functionality in OpenEMR 4 allows remote attackers to execute arbitrary PHP code by uploading a file with an executable extension followed by a safe extension, then accessing it via a direct request to the patient directory under documents/.
Cross-site scripting (XSS) vulnerability in setup.php in OpenEMR 4 allows remote attackers to inject arbitrary web script or HTML via the site parameter.
SQL injection vulnerability in interface/login/validateUser.php in OpenEMR 4.1.0 and possibly earlier allows remote attackers to execute arbitrary SQL commands via the u parameter.