CVE-2023-2943Public exploitNetwork attack vector

Stored script execution via unescaped chat messages

Published May 27, 2023 · Updated Jan 14, 2025

Stored cross-site scripting in OpenEMR before 7.0.1 allows remote authenticated users to execute script through a crafted portal chat message. The portal secure-chat renderMessageBody function returns attacker-controlled message HTML directly to AngularJS without attribute escaping. Exploitation requires an authenticated portal user to send the message and another user to render it, enabling script execution in that viewer's browser.

CVSS severity8.8
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in OpenEMR before 7.0.1 allows remote authenticated users to execute script through a crafted portal chat message. The portal secure-chat renderMessageBody function returns attacker-controlled message HTML directly to AngularJS without attribute escaping. Exploitation requires an authenticated portal user to send the message and another user to render it, enabling script execution in that viewer's browser.

The record

CVE
CVE-2023-2943
Published
May 27, 2023
Updated
Jan 14, 2025
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-94, T1059.007
Attack vector
network
Privileges
authenticated

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 privilegesauthenticated

What is affected?

OpenEMR Foundation · OpenEMRversion=unspecified <7.0.1

Published CVSS scores

4.6huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.007JavaScript/JScript

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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