PatchTheCVECVE-2026-33931: OpenEMR is a free and open source electronic health records and medical practice management application
CVE-2026-33931 is a medium-severity flaw (CVSS 6.5) affecting openemr. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, an Insecure Direct Object Reference (IDOR) vulnerability in the patient portal payment page allows any authenticated portal patient to access other patients' payment records — including invoice/billing data (PHI) and payment card metadata — by manipulating the `recid` query parameter in `portal/portal_payment.php`. Ve
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 70%) |
| CISA exploited list | No |
| Weakness | CWE-639 |
| Published | 2026-03-26 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-33931?
openemr: upgrade to 8.0.0.3. Exact commands for each OS are on this page.
Is CVE-2026-33931 being exploited?
CVE-2026-33931 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-33931 affect?
CVE-2026-33931 affects openemr. Severity is medium (CVSS 6.5). OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, an Insecure Direct Object Reference (IDOR) vulnerability in the patient portal payment page allows any authen
How urgent is CVE-2026-33931?
Priority 35/100. Public exploit reference
Software pages
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