CVE-2026-33303
OpenEMR Vulnerable to Stored XSS via Unescaped portal_login_username in Credential Print View
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
11th
OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0.2 are vulnerable to stored cross-site scripting (XSS) via unescaped `portal_login_username` in the portal credential print view. A patient portal user can set their login username to an XSS payload, which then executes in a clinic staff member's browser when they open the "Create Portal Login" page for that patient. This crosses from the patient session context into the staff/admin session context. Version 8.0.0.2 fixes the issue.
| CWE | CWE-79 |
| Vendor | openemr |
| Product | openemr |
| Published | Mar 19, 2026 |
| Last Updated | Mar 24, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
openemr / openemr
< 8.0.0.2