HOMEVULNERABILITIESCVE-2023-4142
HIGH

CVE-2023-4142

CWE-94Published: August 4, 2023· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

The WP Ultimate CSV Importer plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 7.9.8 via the '->cus1' parameter. This allows authenticated attackers with author-level permissions or above, if the administrator previously grants access in the plugin settings, to execute code on the server. The author resolved this vulnerability by removing the ability for authors and editors to import files, please note that this means remote code execution is still possible for site administrators, use the plugin with caution.

NVD Source

Technical Analysis

CVE-2023-4142 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

smackcoders1 product(s)
wp ultimate csv importer
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php
PATCHhttps://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php
ADVISORYhttps://www.wordfence.com/threat-intel/vulnerabilities/id/db1bad2e-55df-40c5-9a3f-651858a19b42?source=cve
ADVISORYhttps://www.wordfence.com/threat-intel/vulnerabilities/id/db1bad2e-55df-40c5-9a3f-651858a19b42?source=cve

All References (6)

→
https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205Release Notes
→
https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.phpPatch
→
https://www.wordfence.com/threat-intel/vulnerabilities/id/db1bad2e-55df-40c5-9a3f-651858a19b42?source=cveThird Party Advisory
→
https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205Release Notes
→
https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.phpPatch
→
https://www.wordfence.com/threat-intel/vulnerabilities/id/db1bad2e-55df-40c5-9a3f-651858a19b42?source=cveThird Party Advisory

Quick Facts

CVE IDCVE-2023-4142
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-94
CISA KEVNo
Affected1 vendor(s)
PublishedAug 4, 2023

Related CVEs (CWE-94)

CVE-2007-0065
10.0
CVE-2009-0208
10.0
CVE-2008-0075
10.0
CVE-2008-0235
10.0
CVE-2007-5351
10.0
CVE-2008-2041
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-4142 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2023-4142·NVD