Is CVE-2026-33346 actively exploited?

CVE-2026-33346 has no public evidence of in-the-wild exploitation as of 2026-03-20.

What is the CVSS score for CVE-2026-33346?

CVE-2026-33346 has a CVSS score of 8.7 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

How do I patch CVE-2026-33346?

Patch guidance is available from open-emr security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-33346.

Fix CVE-2026-33346 - HIGH open-emr openemr

Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, a stored cross-site scripting (XSS) vulnerability in the patient portal payment flow allows a patient portal user to persist arbitrary JavaScript that executes in the browser of a staff member who reviews the payment submission. The payload is stored via `portal/lib/paylib.php` and rendered without escaping in `portal/portal_payment.php`. Version 8.0.0.2 fixes the issue.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: required
Scope: changed
Confidentiality: high
Integrity: high
Availability: none
Weaknesses: CWE-79 · Cross-site Scripting (XSS)

Metadata

Primary Vendor: OPEN-EMR
Published: 3/19/2026
Last Modified: 3/20/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-33346

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary