CVE-2026-33299Public exploitNetwork attack vector

Stored XSS via unescaped Eye Exam answers

Published Mar 19, 2026 · Updated Mar 19, 2026

Stored XSS in OpenEMR before 8.0.0.2 allows remote authenticated users to execute JavaScript in other users' browsers via Eye Exam answers. interface/forms/eye_mag/report.php prints HPI and other saved form values into the report without output encoding. The attacker needs the required encounter-notes role, and execution occurs when an authorized user views the encounter, history, or print report.

CVSS severity8.5
High
EPSS probability0.17%
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 8.0.0.2 allows remote authenticated users to execute JavaScript in other users' browsers via Eye Exam answers. interface/forms/eye_mag/report.php prints HPI and other saved form values into the report without output encoding. The attacker needs the required encounter-notes role, and execution occurs when an authorized user views the encounter, history, or print report.

The record

CVE
CVE-2026-33299
Published
Mar 19, 2026
Updated
Mar 19, 2026
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 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=< 8.0.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenEMR Foundation · OpenEMRversion=< 8.0.0.2

Published CVSS scores

8.5GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.4NIST NVDCVSS: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')
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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