Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Open-Emr | Openemr | < 8.0.0.2 |
Related Weaknesses (CWE)
References
- https://github.com/openemr/openemr/commit/c32139b5144b1c704015221520ad2f931e25f1Patch
- https://github.com/openemr/openemr/security/advisories/GHSA-cp37-pmfx-5mhmExploitVendor Advisory
FAQ
What is CVE-2026-33303?
CVE-2026-33303 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 `po...
How severe is CVE-2026-33303?
CVE-2026-33303 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33303?
Check the references section above for vendor advisories and patch information. Affected products include: Open-Emr Openemr.