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TI-2026-34207 Aliases CVE-2026-46518

OpenEMR: Stored XSS in prescription CSS/HTML print view via patient demographics

Priority HIGH 71CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting, Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79 and CWE-862.

Summary

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.1, a stored cross-site scripting vulnerability in the prescription CSS/HTML multi-print feature allows a patient portal user to execute arbitrary JavaScript in a clinician's browser session. Patient demographic fields (name, address) are rendered without output encoding in multiprintcss_header(), and portal patients can write attacker-controlled HTML directly into patient_data by calling the PUT api/patient/:num endpoint, which bypasses the intended audit review workflow. Because the XSS fires in the clinician's authenticated session on the main OpenEMR interface, the attacker can access CSRF tokens, session data, and perform actions as the clinician — crossing the patient-to-clinician trust boundary. This issue has been patched in version 8.0.0.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00208 10th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed openemr (openemr): 8.0.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openemropenemrbefore 8.0.0.18.0.0.1Patch availableCNA
  • openemr Vendoropenemr Affected before 8.0.0.1 Fixed in 8.0.0.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*before 8.0.0.1VulnerableOpen-Emr
  • cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* Versions before 8.0.0.1 Vulnerable ·Open-Emr

Remediation

  • Fix · CNA openemr (openemr) Fixed in 8.0.0.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46518
  2. 2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

  • TI-2026-24664 SQL Injection Vulnerability in ajax graphs library (OpenEMR) CVSS 3.1HIGH 8.8
  • TI-2026-85645 Missing write ACL lets users reassign documents in OpenEMR CVSS 3.1CRITICAL 9.6
  • TI-2026-28796 OpenEMR 8.2.0 Remote Code Execution via CategoryTree eval() Injection CVSS 4.0CRITICAL 9.4
  • TI-2026-20308 OpenEMR's payments gateway_api_key secret rendered into client JS code CVSS 3.1CRITICAL 9.6
  • TI-2026-20093 OpenEMR has SQL Injection in Patient API Sort Parameter CVSS 3.1CRITICAL 10.0
  • TI-2026-20048 OpenEMR Arbitrary File Read Vulnerability CVSS 3.1CRITICAL 10.0
See all 153 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences