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CVE-2026-33931

OpenEMR has IDOR in Portal Payment Page that Allows Cross-Patient Record Access

Published: Mar 25, 2026Updated: Mar 26, 2026 Sources: CVE List NVDCWE-639
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.4%
Top 73.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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`. Version 8.0.0.3 patches the issue.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-639

Affected Products

openemropen-emr
On-premWeb App
Enterprise Software / document-mgmt
openemropenemr
On-premWeb App
Enterprise Software / itsm-monitoring
open-emross-projectUSEnterprise Softwareaka openemr
openemross-projectEnterprise Softwareaka openemr/openemr, openemr

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/openemr/openemr/commit/7bf30e0ec5587f80c19094d58df09d46ac328806
github.com
https://github.com/openemr/openemr/releases/tag/v8_0_0_3
github.com
https://github.com/openemr/openemr/security/advisories/GHSA-hf37-5rp9-j27j
github.com

Timeline

Published
Mar 25, 2026
Last Updated
Mar 26, 2026

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