CVE-2021-4096Network attack vector

Webshell access via forged import file upload

Published Apr 19, 2022 · Updated Feb 7, 2025

Cross-site request forgery in Radykal Fancy Product Designer 4.7.5 and earlier allows remote attackers to upload arbitrary files. The FPD_Admin_Import class processes forged import requests without adequate CSRF validation and permits dangerous file types to be written to the server. Exploitation requires a target user to submit the forged request; a successfully uploaded server-executable file grants webshell access.

CVSS severity8.8
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Radykal Fancy Product Designer 4.7.5 and earlier allows remote attackers to upload arbitrary files. The FPD_Admin_Import class processes forged import requests without adequate CSRF validation and permits dangerous file types to be written to the server. Exploitation requires a target user to submit the forged request; a successfully uploaded server-executable file grants webshell access.

The record

CVE
CVE-2021-4096
Published
Apr 19, 2022
Updated
Feb 7, 2025
Vendor
Radykal
Product
Fancy Product Designer
Classifications
CWE-434, CWE-352, T1505.003, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Feb 7, 2025Record 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=4.7.5 <=4.7.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Radykal · Fancy Product Designerversion=4.7.5 <=4.7.5

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-352Cross-Site Request Forgery (CSRF)
T1505.003Web Shell
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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