CVE-2022-2731Public exploitNetwork attack vector

Browser script execution via unescaped backup status

Published Aug 9, 2022 · Updated Aug 3, 2024

Reflected XSS in OpenEMR before 7.0.0.1 allows remote authenticated users to execute script in an administrator's browser. interface/main/backup.php accepts the form_status POST value and emits it through nl2br() and into a hidden input without HTML output encoding. The page requires admin/super access, and script execution is confined to the browser that submits the crafted backup-status request.

CVSS severity5.4
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in OpenEMR before 7.0.0.1 allows remote authenticated users to execute script in an administrator's browser. interface/main/backup.php accepts the form_status POST value and emits it through nl2br() and into a hidden input without HTML output encoding. The page requires admin/super access, and script execution is confined to the browser that submits the crafted backup-status request.

The record

CVE
CVE-2022-2731
Published
Aug 9, 2022
Updated
Aug 3, 2024
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 <7.0.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OpenEMR Foundation · OpenEMRversion=unspecified <7.0.0.1

Published CVSS scores

5.4huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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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