CVE-2026-124447

8.1 HIGHpublic exploit available

Published 2026-11-08 · Updated 2026-11-10

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in OnsitePortalActivityController::Update() that checks the request's patientId instead of the stored record's owner. Authenticated portal patients can send PUT requests to the onsiteportalactivity API with another patient's activity id and their own patientId to disclose tableArgs and checksum data, overwrite narratives and status, and take ownership of the record.

CVSS vector

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

Weaknesses

CWE-639

Public exploit & PoC references

https://github.com/openemr/openemr/security/advisories/GHSA-5hx3-92fw-6jm6
https://github.com/openemr/openemr/security/advisories/GHSA-x8rm-m66w-qhh5

All references

https://github.com/openemr/openemr/security/advisories/GHSA-5hx3-92fw-6jm6
https://github.com/openemr/openemr/security/advisories/GHSA-x8rm-m66w-qhh5
https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-via-onsiteportalactivitycontroller-update-endpoint

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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