CVE-2020-20444Public exploitNetwork attack vector

Arbitrary file read via path traversal

Published Jun 16, 2021 · Updated Aug 4, 2024

Path traversal in Jact OpenClinic 0.8.20160412 allows remote authenticated users to read arbitrary server files through a crafted GET request. The /shared/view_source.php endpoint accepts traversal sequences in the file parameter and passes the selected path to its source-viewing operation without confinement. Exploitation requires an administrator session and discloses files readable by the web server; arbitrary code execution is not demonstrated.

CVSS severity7.2
High
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Jact OpenClinic 0.8.20160412 allows remote authenticated users to read arbitrary server files through a crafted GET request. The /shared/view_source.php endpoint accepts traversal sequences in the file parameter and passes the selected path to its source-viewing operation without confinement. Exploitation requires an administrator session and discloses files readable by the web server; arbitrary code execution is not demonstrated.

The record

CVE
CVE-2020-20444
Published
Jun 16, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

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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-862Missing Authorization
T1005Data from Local System

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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