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CVE-2026-124483— OpenEMR before 8.4.0 Improper Authorization via Prescription REST API

Quick assessment

Affected

openemr openemr

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 OpenEMR 8.4.0 之前的版本中，存在一个授权错误漏洞。该漏洞的成因是处方 REST API 路由错误地检查了访问控制列表（ACL），而非正确的，且未请求特定的权限位，因此仅拥有“医疗/病历”只读权限的用户也能通过验证。已认证的工作人员可复用通过用户界面暴露的，从而枚举处方 UUID、为任意患者伪造处方，并在整个租户范围内停用现有处方。

CVSS 8.3 · High Updated Nov 08, 2026

Possible ATT&CK Techniques 2 AI

T1068.003 T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

OpenEMR before 8.4.0 Improper Authorization via Prescription REST API

Source: CVE Program / CVE List V5

Vulnerability Description

OpenEMR before 8.4.0 contains an incorrect authorization vulnerability because the prescription REST API routes check the patients.med ACL instead of patients.rx and request no specific permission bit, so read-only Medical/History access passes the check. Authenticated staff users can reuse the UI-exposed APICSRFTOKEN to enumerate prescription UUIDs, forge prescriptions for arbitrary patients, and deactivate existing prescriptions tenant-wide.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制不正确

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
openemr	openemr	0 ~ 8.4.0	-

II. Public POCs for CVE-2026-124483

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-124483

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Other References for CVE-2026-124483 (2)

https://github.com/openemr/openemr/security/advisories/GHSA-qrc2-5wvq-f68q vendor-advisory
https://www.vulncheck.com/advisories/openemr-before-8.4.0-improper-authorization-via-prescription-rest-api third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-124483

Same Patch Batch · openemr · 2026-11-08 · 44 CVEs total

CVE-2026-124469	9.9 CRITICAL	OpenEMR before 8.3.0 SQL Injection via Fee Sheet warehouse parameter
CVE-2026-124450	9.9 CRITICAL	OpenEMR before 8.3.0 Arbitrary File Read/Write via disposeDocument
CVE-2026-124445	9.8 CRITICAL	OpenEMR 7.0.1 before 8.4.0 OneTimeAuth Token Replay and PIN Brute Force
CVE-2026-124490	9.1 CRITICAL	OpenEMR before 8.3.0 Arbitrary File Read/Write via oe-module-faxsms disposeDocument
CVE-2026-124467	8.8 HIGH	OpenEMR before 8.4.0 Remote Code Execution via ESign LFI and fax upload
CVE-2026-124484	8.8 HIGH	OpenEMR before 8.4.0 Missing Authorization in Portal Onsite-Document APIs
CVE-2026-124480	8.8 HIGH	OpenEMR before 8.4.0 Authorization Bypass via FHIR QuestionnaireResponse APICSRFTOKEN
CVE-2026-124477	8.8 HIGH	OpenEMR before 8.3.0 Missing Authorization via delete_Recall in save.php
CVE-2026-124446	8.8 HIGH	OpenEMR before 8.3.0 Arbitrary File Read and Write via FaxSMS disposeDocument
CVE-2026-124486	8.8 HIGH	OpenEMR before 8.3.0 Missing Authorization in Classic Document Controller
CVE-2026-124463	8.7 HIGH	OpenEMR before 8.3.0 Stored XSS via CAMOS Rx Print View
CVE-2026-124488	8.1 HIGH	OpenEMR before 8.3.0 Authorization Bypass via load_form.php High-Sensitivity Encounters
CVE-2026-124459	8.1 HIGH	OpenEMR before 8.3.0 Cross-Patient IDOR via Encounter Form Viewers and Save Handlers
CVE-2026-124447	8.1 HIGH	OpenEMR before 8.3.0 IDOR via OnsitePortalActivityController Update Endpoint
CVE-2026-124472	8.1 HIGH	OpenEMR before 8.3.0 Missing Authorization via sl_eob_patient_note.php
CVE-2026-124461	8.1 HIGH	OpenEMR before 8.3.0 IDOR via DICOM library/ajax/upload.php Endpoint
CVE-2026-124471	8.1 HIGH	OpenEMR before 8.3.0 Missing Authorization and IDOR via sl_eob_invoice.php
CVE-2026-124457	7.6 HIGH	OpenEMR before 8.3.0 Path Traversal via sl_eob_process.php eraname
CVE-2026-124448	7.6 HIGH	OpenEMR before 8.3.0 Stored XSS via CCDA/CCD Preview XSLT Attributes
CVE-2026-124466	7.2 HIGH	OpenEMR before 8.4.0 Unauthenticated SSRF via OAuth2 Client jwks_uri

Showing top 20 of 44 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: openemr

Same vendor: openemr

Same weakness: CWE-863