CVE-2022-41217Network attack vector

Unauthenticated malicious file upload to PROOFSCOPE

Published Feb 22, 2023 · Updated Apr 1, 2025

Unrestricted file upload in Hybrid Software CLOUDFLOW 2.3.1 and earlier allows remote attackers to store malicious files in PROOFSCOPE. The published record identifies PROOFSCOPE built-in storage as the upload destination but does not disclose the request endpoint or omitted validation operation. Network access is sufficient without authentication or user interaction; attacker-controlled content can include a web shell.

CVSS severity9.8
Critical
EPSS probability0.71%
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 Hybrid Software CLOUDFLOW 2.3.1 and earlier allows remote attackers to store malicious files in PROOFSCOPE. The published record identifies PROOFSCOPE built-in storage as the upload destination but does not disclose the request endpoint or omitted validation operation. Network access is sufficient without authentication or user interaction; attacker-controlled content can include a web shell.

The record

CVE
CVE-2022-41217
Published
Feb 22, 2023
Updated
Apr 1, 2025
Vendor
Hybrid Software
Product
CLOUDFLOW
Classifications
CWE-434, CAPEC-650, T1505.003, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 1, 2025Record 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=< 2.3.1 <=2.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hybrid Software · CLOUDFLOWversion=< 2.3.1 <=2.3.1

Published CVSS scores

9.8DIVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-650Upload a Web Shell to a Web Server
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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