CVE intelligence and bounded remediation

CVE-2025-43860 — OpenEMR is a free and open source electronic health records and medical practice management application

High CVSS 7.6

OpenEMR is a free and open source electronic health records and medical practice management application. A stored cross-site scripting (XSS) vulnerability in versions prior to 7.0.3.4 allows any authenticated user with patient creation and editing privileges to inject arbitrary JavaScript code into the system by entering malicious payloads in the (1) Text Box fields of Address, Address Line 2, Postal Code and City fields and (2) Drop Down menu options of Address Use, State and Country of the Additional Addresses section of the Contact tab in Patient Demographics. The injected script can execute in two scenarios: (1) dynamically during form input, and (2) when the form data is later loaded for editing. Version 7.0.3.4 contains a patch for the issue.

Severity
High
CVSS
7.6 (3.1)
Published
2025-05-23
CISA KEV
Not currently listed
Ecosystem
javascript/npm
Weaknesses
CWE-79

Affected products

  • open-emr / openemr

Matched remediation archetype

Cross-site scripting and unsafe browser output

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
  • Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
  • Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.

Remediate safely

  • Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
  • Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
  • Update affected rendering components and add tests for every output context using inert sentinel markup.

Authoritative sources

Complete CVE record and remediation plan

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