CVE-2022-31496Public exploitNetwork attack vector

Authenticated code execution via site-file editing

Published Jun 8, 2022 · Updated Aug 3, 2024

Broken access control in LibreHealth EHR Base 2.0.0 allows remote authenticated users to execute code through the site-file manager. The manage_site_files.php endpoint omits a super-administrator authorization check and lets any signed-in user replace web-accessible site files. Ordinary user access is sufficient to inject PHP into custom_pdf.php and invoke the resulting web shell remotely.

CVSS severity8.8
High
EPSS probability2.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken access control in LibreHealth EHR Base 2.0.0 allows remote authenticated users to execute code through the site-file manager. The manage_site_files.php endpoint omits a super-administrator authorization check and lets any signed-in user replace web-accessible site files. Ordinary user access is sufficient to inject PHP into custom_pdf.php and invoke the resulting web shell remotely.

The record

CVE
CVE-2022-31496
Published
Jun 8, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 8, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1505.003Server Software Component: Web Shell

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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