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OpenEMR before 8.3.0 Cross-Patient Document Disclosure via Onsite Documents API

OpenEMR before 8.3.0 exposes a patient portal onsite documents API route that lets one patient read other patients' locked consent documents. Fixed in 8.3.0.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

7.1HighCNA
Exploited
No known exploitation
Fix
Fixed in 8.3.0
Who is exposed
Specific setups only

Do first: Check whether your setup matches what the bug needs. OpenEMR versions before 8.3.0 Patient portal live GET onsite documents API route is exposed

Published
Last modified
15/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub

Summary

OpenEMR before 8.3.0 contains an authorization bypass vulnerability in the patient portal onsitedocuments API that allows authenticated patients to read other patients' documents by overriding query criteria. Attackers can send empty pid_Equals and denialReason_IsNotLike parameters to remove patient scoping and locked filters, exposing consent bodies, signatures, file paths, and template data.

cve.now Index

15Pcve.now Index 15 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure8/25Specific setups only, reachable over the network
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity7.1/10CVSS 7.1
  • No patch0/5No signal

What would change the score

  • Would score about 65 if added to CISA KEV
  • Would score about 60 if CISA's SSVC rates exploitation active
  • Would score about 22 if CISA's SSVC rates it automatable

What to do

  • Check whether your setup matches what the bug needs.

    OpenEMR versions before 8.3.0 Patient portal live GET onsite documents API route is exposed
  • Upgrade to a fixed version: 8.3.0.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • openemr openemr

    fixed in 8.3.0

Evidence 2

  1. Advisory
  2. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-124485

Is CVE-2026-124485 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: cve.now feed data

What does this mean?

An authenticated patient portal user can request other patients' locked onsite consent documents through the onsite documents API. The exposed data includes document bodies, signatures, file paths and template data.Source: vulncheck.com, github.com

Which versions are affected by CVE-2026-124485?

openemr: before 8.3.0.Source: cve.now feed data

Am I affected, and how do I check?

OpenEMR versions before 8.3.0 are affected, and the patient portal's live GET onsite documents API route is the exposed part. Check your OpenEMR version in the admin footer or the version file to see whether it is below 8.3.0.Source: vulncheck.com, github.com

How do I fix CVE-2026-124485?

Upgrade OpenEMR to version 8.3.0 or later, which contains the fix.Source: vulncheck.com, github.com