CVE-2026-102940 (GCVE-0-2026-102940)
Vulnerability from cvelistv5 – Published: 2026-11-05 20:07 – Updated: 2026-11-05 21:02
VLAI
EPSS
VEX
Title
OpenEMR: Missing Write ACL Allows Unauthorized Document Reassignment
Summary
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.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 21:02 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/openemr/openemr/security/advis… | x_refsource_CONFIRM |
| https://github.com/openemr/openemr/pull/13353 | x_refsource_MISC |
| https://github.com/openemr/openemr/commit/312b5d0… | x_refsource_MISC |
| https://github.com/openemr/openemr/releases/tag/v8_3_0 | x_refsource_MISC |
Impacted products
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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