CVE-2023-4142Network attack vector

Authenticated code execution via cus1 import mapping

Published Aug 4, 2023 · Updated Apr 8, 2026

Code injection in Smackcoders WP Ultimate CSV Importer 7.9.8 and earlier allows remote authenticated users to execute server-side code. Published material identifies the ->cus1 import-mapping parameter and ImportHelpers.php as the affected path but does not disclose the code-generation sink. Author-level access and prior administrator permission to import files are required; successful exploitation grants code execution on the WordPress server.

CVSS severity8.0
High
EPSS probability1.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Smackcoders WP Ultimate CSV Importer 7.9.8 and earlier allows remote authenticated users to execute server-side code. Published material identifies the ->cus1 import-mapping parameter and ImportHelpers.php as the affected path but does not disclose the code-generation sink. Author-level access and prior administrator permission to import files are required; successful exploitation grants code execution on the WordPress server.

The record

CVE
CVE-2023-4142
Published
Aug 4, 2023
Updated
Apr 8, 2026
Vendor
Smackcoders Inc.
Product
WP Ultimate CSV Importer
Classifications
CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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=0 <=7.9.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Smackcoders Inc. · WP Ultimate CSV Importerversion=0 <=7.9.8

Published CVSS scores

8.0WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
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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