CVE-2026-124470 (CVSS 6.5)

Description

OpenEMR before 8.3.0 contains a broken object level authorization vulnerability in portal/report/portal_custom_report.php that allows authenticated portal patients to read other patients' problem list entries. Attackers can enumerate sequential IDs in issue_ parameter names to retrieve other patients' problem titles, clinical notes, ICD diagnosis codes, and IPPF contraceptive records.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0026

Probability of exploitation

0.18%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-639 CWE-639

References

Other References

https://github.com/openemr/openemr/security/advisories/GHSA-xcrj-xc98-x8g6 https://www.vulncheck.com/advisories/openemr-before-8.3.0-bola-via-portal-custom-report-php-exposes-patient-problem-lists https://github.com/openemr/openemr/security/advisories/GHSA-xcrj-xc98-x8g6

Frequently Asked Questions

What is CVE-2026-124470? +

OpenEMR before 8.3.0 contains a broken object level authorization vulnerability in portal/report/portal_custom_report.php that allows authenticated portal patients to read other patients' problem list entries. Attackers can enumerate sequential IDs in issue_ parameter names to retrieve other patients' problem titles, clinical notes, ICD diagnosis codes, and IPPF contraceptive records. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-124470? +

CVE-2026-124470 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0026, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-124470? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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