CVE-2026-102940
OpenEMR: Missing Write ACL Allows Unauthorized Document Reassignment
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.4.0, controllers/C_Document.class.php write actions, including move_action_process(), do not verify the caller's access to the source document, current patient and category, or destination patient and category before Document::change_patient() performs the mutation. A low-privilege authenticated user can reassign an arbitrary document to a patient or category the user can access and then retrieve it through the normally protected read path. The reassignment occurs before a later list rendering check, so a final HTTP 403 response does not mean the unauthorized write was blocked. This issue is fixed in version 8.4.0.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| openemr openemr |
< 8.4.0 (affected) | CNA: GitHub_M |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 9.6 critical |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N | CNA: GitHub_M |
Exploit evidence
- https://github.com/openemr/openemr/security/advisories/GHSA-92rh-g949-4mvv
exploit · ADP: CISA-ADP
References
- https://github.com/openemr/openemr/security/advisories/GHSA-92rh-g949-4mvvCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/openemr/openemr/pull/13353CNA: GitHub_M · x_refsource_MISC
- https://github.com/openemr/openemr/commit/312b5d042f7fa49cc78ebed041155fba339a991cCNA: GitHub_M · x_refsource_MISC
- https://github.com/openemr/openemr/releases/tag/v8_3_0CNA: GitHub_M · x_refsource_MISC
- https://github.com/openemr/openemr/security/advisories/GHSA-92rh-g949-4mvvADP: CISA-ADP · exploit
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