CVE-2023-2947Public exploitNetwork attack vector

Stored script execution via unescaped site metadata

Published May 27, 2023 · Updated Jan 14, 2025

Stored XSS in OpenEMR before 7.0.1 allows attackers to execute script when crafted multisite metadata is rendered. The multisite admin.php page writes the site directory name, database name, connection error, site name, and version into HTML without output encoding. Exploitation requires control of stored site metadata and a visit to the multisite administration page; injected script runs in that visitor's browser.

CVSS severity4.7
Medium
EPSS probability90.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in OpenEMR before 7.0.1 allows attackers to execute script when crafted multisite metadata is rendered. The multisite admin.php page writes the site directory name, database name, connection error, site name, and version into HTML without output encoding. Exploitation requires control of stored site metadata and a visit to the multisite administration page; injected script runs in that visitor's browser.

The record

CVE
CVE-2023-2947
Published
May 27, 2023
Updated
Jan 14, 2025
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 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?

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

  1. Affected versionversion=unspecified <7.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OpenEMR Foundation · OpenEMRversion=unspecified <7.0.1

Published CVSS scores

4.7huntr.devCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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