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CVE Record

CVE-2020-36942: Victor CMS 1.0 - File Upload To RCE

Victor CMS 1.0 contains a file upload vulnerability that allows authenticated users to upload malicious PHP files through the profile image upload feature. Attackers can upload a PHP shell to the /img directory and execute system commands by accessing the uploaded file via web browser.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Victor CMS 1.0 has an authenticated file upload flaw in the profile image feature. A logged-in attacker could upload a PHP file and cause the server to run it, potentially taking over the site. This is high urgency for any internet-facing deployment using this exact CMS/version.

Executive priority

Treat as urgent for any live Victor CMS 1.0 site, especially internet-facing deployments. The business risk is full website compromise from a low-privileged account. Prioritize confirmation, access restriction, and replacement or vendor-supported remediation.

Technical view

CVE-2020-36942 is CWE-434 unrestricted file upload in VictorAlagwu CMSsite/Victor CMS 1.0. The reported path is the profile image upload feature, enabling PHP upload into a web-accessible image directory and remote code execution. CVSS 3.1 is 8.8, with low attack complexity and low privileges required.

Likely exposure

Exposure appears limited to Victor CMS/CMSsite version 1.0. Risk is highest where user accounts can authenticate to the CMS and the application is reachable over the network. The source bundle does not identify other affected versions or a fixed release.

Exploitation context

A public ExploitDB entry and VulnCheck advisory exist, so proof-of-concept information is public. The provided sources do not show CISA KEV listing or confirmed active exploitation. Exploitation requires authenticated access but no user interaction.

Researcher notes

Evidence supports authenticated arbitrary PHP upload leading to RCE in Victor CMS 1.0. Patch status is not established in the provided sources. Avoid assuming broader product impact. Public exploit availability increases defender urgency, but active exploitation is not confirmed here.

Mitigation direction

  • Identify whether Victor CMS/CMSsite 1.0 is deployed.
  • Check the project repository and vendor guidance for any fixed release or official remediation.
  • If no supported fix exists, plan replacement or removal from exposed environments.
  • Restrict CMS access to trusted users and networks where feasible.
  • Prevent script execution from upload directories using web server controls.

Validation and detection

  • Inventory web applications for Victor CMS/CMSsite 1.0.
  • Review CMS user access and remove unnecessary accounts.
  • Check whether profile image uploads are enabled and web-accessible.
  • Inspect upload directories for unexpected server-side scripts.
  • Confirm web server policy blocks PHP execution in upload paths.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-434: File access and web shell behavior lookup

File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-36942 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2020-36942Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
VictorAlagwuCMSsite1.0Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-434 · source CWE mapping

Unrestricted Upload of File with Dangerous Type

Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.