In OpenEMR 5.0.1 and earlier, controller.php contains a reflected XSS vulnerability in the patient_id parameter. This could allow an attacker to execute arbitrary code in the context of a user's session.
Severity
CVSS 3.0
6.1 medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
53% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)