interface/globals.php in OpenEMR 2.x, 3.x, and 4.x before 4.2.0 patch 2 allows remote attackers to bypass authentication and obtain sensitive information via an ignoreAuth=1 value to certain scripts, as demonstrated by (1) interface/fax/fax_dispatch_newpid.php and (2) interface/billing/sl_eob_search.php.

Multiple SQL injection vulnerabilities in OpenEMR 4.1.1 allow remote authenticated users to execute arbitrary SQL commands via the (1) start or (2) end parameter to interface/reports/custom_report_range.php, or the (3) form_newid parameter to custom/chart_tracker.php.

Cross-site scripting (XSS) vulnerability in interface/main/onotes/office_comments_full.php in OpenEMR 4.1.1 allows remote attackers to inject arbitrary web script or HTML via the note parameter.

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.