CVE-2025-11221

Unauthenticated code execution via unrestricted file upload

Published Oct 2, 2025 · Updated Oct 2, 2025

Path traversal and unrestricted file upload in GTONE ChangeFlow 9.0.1.1 and earlier allow remote attackers to execute code. ChangeFlow accepts dangerous file types while inadequately restricting uploaded pathnames, but the CNA does not identify the upload endpoint or publish a code-level locus. Exploitation requires adjacent-network reachability and no authentication or user interaction; successful uploads can cross access-control boundaries and compromise the server.

CVSS severity9.4
Critical
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal and unrestricted file upload in GTONE ChangeFlow 9.0.1.1 and earlier allow remote attackers to execute code. ChangeFlow accepts dangerous file types while inadequately restricting uploaded pathnames, but the CNA does not identify the upload endpoint or publish a code-level locus. Exploitation requires adjacent-network reachability and no authentication or user interaction; successful uploads can cross access-control boundaries and compromise the server.

The record

CVE
CVE-2025-11221
Published
Oct 2, 2025
Updated
Oct 2, 2025
Vendor
GTONE
Product
ChangeFlow
Classifications
CWE-434, CWE-22, CAPEC-1, CAPEC-126
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 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=All versions <=v9.0.1.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

GTONE · ChangeFlowversion=All versions <=v9.0.1.1

Published CVSS scores

8.8FSICVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.4FSICVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
CAPEC-126Path Traversal

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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