CVE-2020-37073Public exploitNetwork attack vector

Administrator command execution via unrestricted PHP upload

Published Feb 3, 2026 · Updated Feb 3, 2026

Unrestricted file upload in Victor CMS 1.0 allows remote authenticated users to execute system commands through the user_image field. The admin/includes/admin_add_user.php handler passes the client-supplied filename and temporary file directly to move_uploaded_file in the web-accessible img directory without validating the extension or content. Administrator access is required; a PHP payload stored there executes under the web server when its URL is requested, enabling command execution with that process's privileges.

CVSS severity8.6
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Victor CMS 1.0 allows remote authenticated users to execute system commands through the user_image field. The admin/includes/admin_add_user.php handler passes the client-supplied filename and temporary file directly to move_uploaded_file in the web-accessible img directory without validating the extension or content. Administrator access is required; a PHP payload stored there executes under the web server when its URL is requested, enabling command execution with that process's privileges.

The record

CVE
CVE-2020-37073
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
Victor Alagwu
Product
Victor CMS
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Victor Alagwu · Victor CMSversion=1.0

Published CVSS scores

8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.6VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
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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