CVE-2023-40278Public exploitNetwork attack vector

Appointment enumeration via distinguishable error responses

Published Mar 19, 2024 · Updated Apr 10, 2025

Information disclosure in OpenClinic GA 5.247.01 allows remote attackers to enumerate appointments through crafted web requests. The printAppointmentPdf.jsp endpoint returns distinguishable error messages when AppointmentUid identifies an existing appointment rather than a nonexistent one. No authentication or user interaction is required, and the bounded consequence is disclosure of whether particular appointment identifiers exist.

CVSS severity7.5
High
EPSS probability3.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in OpenClinic GA 5.247.01 allows remote attackers to enumerate appointments through crafted web requests. The printAppointmentPdf.jsp endpoint returns distinguishable error messages when AppointmentUid identifies an existing appointment rather than a nonexistent one. No authentication or user interaction is required, and the bounded consequence is disclosure of whether particular appointment identifiers exist.

The record

CVE
CVE-2023-40278
Published
Mar 19, 2024
Updated
Apr 10, 2025
Vendor
OpenClinic GA Project
Product
OpenClinic GA
Classifications
CWE-200, T1595
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.247.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenClinic GA Project · OpenClinic GAversion=5.247.01

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1595Active Scanning

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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