CVE-2025-11170Public exploitNetwork attack vector

Unauthenticated arbitrary file upload via missing type validation

Published Nov 11, 2025 · Updated Nov 11, 2025

Arbitrary file upload in WP移行専用プラグイン for CPI 1.0.2 and earlier allows remote attackers to place files on WordPress servers. Cpiwm_Import_Controller::import accepts uploaded content without validating its file type, permitting dangerous extensions such as PHP. No authentication or user interaction is required; an executable server-side file results in remote code execution when the web server interprets it.

CVSS severity9.8
Critical
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in WP移行専用プラグイン for CPI 1.0.2 and earlier allows remote attackers to place files on WordPress servers. Cpiwm_Import_Controller::import accepts uploaded content without validating its file type, permitting dangerous extensions such as PHP. No authentication or user interaction is required; an executable server-side file results in remote code execution when the web server interprets it.

The record

CVE
CVE-2025-11170
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
KDDI Web Communications
Product
WP移行専用プラグイン for CPI
Classifications
CWE-434, T1190, T1105
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 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=* <=1.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

KDDI Web Communications · WP移行専用プラグイン for CPIversion=* <=1.0.2

Published CVSS scores

9.8WordfenceCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application
T1105Ingress Tool Transfer

Public exploit references

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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