CVE-2026-25743Public exploitNetwork attack vector

Stored XSS via unescaped questionnaire answers

Published Feb 25, 2026 · Updated Feb 25, 2026

Stored XSS in OpenEMR before 8.0.0 allows remote authenticated users with Forms administration access to execute JavaScript in viewers' browsers. QuestionnaireResponseService.php inserts extracted questionnaire answer values directly into an HTML span without text encoding. A victim with permission to view the patient encounter or visit history triggers the stored script, exposing that browser session and accessible medical data.

CVSS severity7.2
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 allows remote authenticated users with Forms administration access to execute JavaScript in viewers' browsers. QuestionnaireResponseService.php inserts extracted questionnaire answer values directly into an HTML span without text encoding. A victim with permission to view the patient encounter or visit history triggers the stored script, exposing that browser session and accessible medical data.

The record

CVE
CVE-2026-25743
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenEMR Foundation · OpenEMRversion=< 8.0.0

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
7.2GitHub, Inc.CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA: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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