CVE-2020-36942Public exploitNetwork attack vector

Authenticated code execution via unchecked profile image upload

Published Jan 27, 2026 · Updated Jan 27, 2026

Unrestricted file upload in Victor CMS 1.0 allows remote authenticated users to execute arbitrary PHP through a profile image. The admin/profile.php update handler passes the client-supplied filename directly to move_uploaded_file and writes it into the web-served img directory without validating the extension, MIME type, or file contents. Any registered user who can reach the profile page can upload a PHP shell and invoke it over HTTP to run commands with the web server's privileges.

CVSS severity8.7
High
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unrestricted file upload in Victor CMS 1.0 allows remote authenticated users to execute arbitrary PHP through a profile image. The admin/profile.php update handler passes the client-supplied filename directly to move_uploaded_file and writes it into the web-served img directory without validating the extension, MIME type, or file contents. Any registered user who can reach the profile page can upload a PHP shell and invoke it over HTTP to run commands with the web server's privileges.

The record

CVE
CVE-2020-36942
Published
Jan 27, 2026
Updated
Jan 27, 2026
Vendor
Victor Alagwu
Product
Victor CMS
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 privilegesauthenticated

What is affected?

Victor Alagwu · Victor CMSversion=1.0

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/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.

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-434Unrestricted Upload of File with Dangerous Type
T1505.003Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo