CVE-2026-32118Public exploitNetwork attack vector

Session hijacking via unescaped pain-map annotations

Published Mar 11, 2026 · Updated Mar 11, 2026

Stored XSS in OpenEMR before 8.0.0.1 allows remote authenticated users to hijack viewer sessions through saved pain-map annotations. The clickmap fn_buildMarker function decodes annotation text and concatenates it into HTML passed to jQuery, creating live elements and event handlers. An account permitted to edit encounter forms can persist JavaScript that runs when another user views the form, exposing non-HttpOnly session cookies and protected records.

CVSS severity5.4
Medium
EPSS probability0.28%
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 8.0.0.1 allows remote authenticated users to hijack viewer sessions through saved pain-map annotations. The clickmap fn_buildMarker function decodes annotation text and concatenates it into HTML passed to jQuery, creating live elements and event handlers. An account permitted to edit encounter forms can persist JavaScript that runs when another user views the form, exposing non-HttpOnly session cookies and protected records.

The record

CVE
CVE-2026-32118
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record 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=< 8.0.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenEMR Foundation · OpenEMRversion=< 8.0.0.1

Published CVSS scores

5.4GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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