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Medkey EHR CVE-2026-12207

| EUVD-2026-36681 LOW
Improper Control of Resource Identifiers ('Resource Injection') (CWE-99)
2026-06-15 VulDB GHSA-m3f2-gxh3-v237
PHP Information Disclosure Medkey
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
4.3 MEDIUM

Network-accessible REST API requires an authenticated low-privilege account; read-only IDOR yields confidentiality impact only, with no integrity or availability consequence.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Severity Changed
Jun 15, 2026 - 02:22 NVD
MEDIUM LOW
CVSS changed
Jun 15, 2026 - 02:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
Analysis Generated
Jun 15, 2026 - 02:14 vuln.today

DescriptionCVE.org

A security flaw has been discovered in medkey-org medkey up to fc09b7ba9441ff590b72d428d5380834216b09ed. Impacted is the function actionGetPatientById of the file app\modules\medical\port\rest\controllers\PatientController.php of the component HTTP REST API. The manipulation of the argument ID results in improper control of resource identifiers. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Patient record exposure in medkey EHR (up to commit fc09b7ba9441ff590b72d428d5380834216b09ed) allows authenticated remote users to retrieve arbitrary patient records by manipulating the id parameter of the actionGetPatientById REST API endpoint - a textbook Insecure Direct Object Reference (BOLA/IDOR) flaw classified under CWE-99. A publicly available proof-of-concept exploit is hosted on GitHub (onyxglitch/Medkey-EHR-IDOR-PoC), materially lowering the exploitation barrier. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain low-privilege medkey account
Delivery
Authenticate to REST API
Exploit
Send GET request with enumerated patient ID
Execution
Bypass missing authorization check
Impact
Retrieve unauthorized patient health record
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated session in medkey with at least low-privilege access (confirmed by CVSS PR:L); unauthenticated exploitation is not possible per the provided vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 5.3 (Medium) is driven by AV:N/AC:L/AT:N/PR:L/UI:N with VC:L and no integrity or availability impact, and is supplemented by E:P (PoC exploit exists), reflecting that exploitation is straightforward for any authenticated user. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with a valid low-privilege account in the medkey deployment - for example, a patient portal user, a junior clinical staff member, or a compromised credential - authenticates to the REST API and issues a GET request to the `actionGetPatientById` endpoint with an incremented or guessed patient `id` value belonging to another patient. Because the server performs no authorization check confirming the requester's relationship to the target patient, it returns that patient's record. …
Remediation No vendor-released patch identified at time of analysis - the vendor did not respond to coordinated disclosure and no fixed commit or release has been confirmed. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-12207 vulnerability details – vuln.today
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