CVE-2023-40277Network attack vector

Reflected XSS via unescaped login message

Published Mar 19, 2024 · Updated Aug 19, 2024

Reflected XSS in OpenClinic GA 5.247.01 allows remote attackers to execute script in a user's browser through the login message parameter. login.jsp places the message parameter into the generated login response without neutralizing HTML or script content. Exploitation requires a user to open a crafted request, after which the injected script runs in the browser security context of the OpenClinic GA site.

CVSS severity6.1
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in OpenClinic GA 5.247.01 allows remote attackers to execute script in a user's browser through the login message parameter. login.jsp places the message parameter into the generated login response without neutralizing HTML or script content. Exploitation requires a user to open a crafted request, after which the injected script runs in the browser security context of the OpenClinic GA site.

The record

CVE
CVE-2023-40277
Published
Mar 19, 2024
Updated
Aug 19, 2024
Vendor
OpenClinic GA Project
Product
OpenClinic GA
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2024Record 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

6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1203Exploitation for Client Execution

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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