interface/patient_file/letter.php in OpenEMR before 5.0.1 allows remote authenticated users to bypass intended access restrictions via the newtemplatename and form_body parameters.
interface/fax/fax_dispatch.php in OpenEMR before 5.0.1 allows remote authenticated users to bypass intended access restrictions via the scan parameter.
The application OpenEMR is affected by multiple reflected & stored Cross-Site Scripting (XSS) vulnerabilities affecting version 5.0.0 and prior versions. These vulnerabilities could allow remote authenticated attackers to inject arbitrary web script or HTML.
OpenEMR 5.0.0 and prior allows low-privilege users to upload files of dangerous types which can result in arbitrary code execution within the context of the vulnerable application.
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.
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.