OpenEMR before 8.3.0 Broken Access Control via portal_payment.php
Affects OpenEMR before 8.3.0 when portal/portal_payment.php is accessed as a core (non-portal) session. Fixed in 8.3.0.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- 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 Vulnerable behavior occurs when portal/portal_payment.php is accessed as a core (non-portal) session
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 15/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
OpenEMR before 8.3.0 contains a broken access control vulnerability in portal/portal_payment.php that allows low-privilege authenticated users to bypass billing ACL checks by tampering patient identifiers. Attackers can modify the pid and form_pid parameters to view payment pages and record fraudulent payment receipts for arbitrary patients, corrupting billing records.
cve.now Index
- 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 Vulnerable behavior occurs when portal/portal_payment.php is accessed as a core (non-portal) sessionUpgrade to a fixed version: 8.3.0.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- openemr openemr
fixed in 8.3.0
Evidence 2
- Advisory
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-124489
Is CVE-2026-124489 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?
A low-privilege authenticated account can record patient payments for arbitrary patients through portal_payment.php. The fraudulent payment receipts corrupt billing records and alter patient balances.Source: vulncheck.com, github.com
Which versions are affected by CVE-2026-124489?
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, but only when portal/portal_payment.php is accessed as a core (non-portal) session. Compare the installed OpenEMR version with 8.3.0 to see whether the version falls in the affected range.Source: vulncheck.com, github.com
How do I fix CVE-2026-124489?
Upgrade OpenEMR to 8.3.0, the version that fixes this vulnerability.Source: vulncheck.com, github.com