Authenticated appointment disclosure via tampered event ID
Published Dec 15, 2022 · Updated Apr 14, 2025
Authorization bypass in OpenEMR before 7.0.0.2 allows remote authenticated users to view another patient's appointment via a changed event ID. The portal/add_edit_event_user.php handler trusted the eid query parameter without confirming that the requested appointment belonged to the logged-in patient. A valid patient-portal session is required, and the documented consequence is disclosure of another patient's appointment.
Summary
What happened
Authorization bypass in OpenEMR before 7.0.0.2 allows remote authenticated users to view another patient's appointment via a changed event ID. The portal/add_edit_event_user.php handler trusted the eid query parameter without confirming that the requested appointment belonged to the logged-in patient. A valid patient-portal session is required, and the documented consequence is disclosure of another patient's appointment.
The record
- CVE
- CVE-2022-4505
- Published
- Dec 15, 2022
- Updated
- Apr 14, 2025
- Vendor
- OpenEMR Foundation
- Product
- OpenEMR
- Classifications
- CWE-639, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 15, 2022CVE publishedPublication date reported by the CVE source.
- Apr 14, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=unspecified <7.0.0.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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