CVE-2022-39036Network attack vector

Unauthenticated code execution via unrestricted file upload

Published Nov 10, 2022 · Updated May 1, 2025

Unrestricted file upload in Flowring Agentflow 4.0.0.1183.552 allows remote attackers to execute arbitrary code without authentication. The attachment upload path fails to filter special characters in URL parameters or restrict uploaded types and extensions, allowing malicious content to reach the system. A network-reachable upload function is sufficient; successful exploitation can manipulate the host or interrupt the service.

CVSS severity9.8
Critical
EPSS probability1.24%
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 Flowring Agentflow 4.0.0.1183.552 allows remote attackers to execute arbitrary code without authentication. The attachment upload path fails to filter special characters in URL parameters or restrict uploaded types and extensions, allowing malicious content to reach the system. A network-reachable upload function is sufficient; successful exploitation can manipulate the host or interrupt the service.

The record

CVE
CVE-2022-39036
Published
Nov 10, 2022
Updated
May 1, 2025
Vendor
Flowring Technology Corp.
Product
Agentflow
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 10, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 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=4.0.0.1183.552

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Flowring Technology Corp. · Agentflowversion=4.0.0.1183.552

Published CVSS scores

9.8TWCERT/CCCVSS: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.

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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
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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