CVE-2026-126450

MEDIUM 5.0

OpenEMR before 8.5.0 Stored XSS via Patient External ID in Prescriptions

CVSS Score

5.0

EPSS Score

0.0%

EPSS Percentile

0th

OpenEMR before 8.5.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject scripts by placing payloads in the patient External ID field. The payload executes when other users open the patient's prescriptions via View Printable Version (HTML), running script in their browser sessions.

CWE	CWE-80
Vendor	openemr
Product	openemr
Published	Nov 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

openemr / openemr

0 < 8.5.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openemr/openemr/security/advisories/GHSA-w2f7-289j-92pp vulncheck.com: https://www.vulncheck.com/advisories/openemr-before-8.5.0-stored-xss-via-patient-external-id-in-prescriptions

Credits

🔍 hekk-one