CVE-2021-25921: Open-EMR Openemr

Medium severity, CVSS 5.4. EPSS: 91.1% chance of exploitation in the next 30 days.

In OpenEMR, versions 2.7.3-rc1 to 6.0.0 are vulnerable to Stored Cross-Site-Scripting (XSS) due to user input not being validated properly in the `Allergies` section. An attacker could lure an admin to enter a malicious payload and by that initiate the exploit.

Affected products

• Open-EMR Openemr: from 2.7.3, up to and including 6.0.0

Published 2021-03-22. Last modified 2026-06-17.