Wp Ultimate Csv Importer - Remote Code Execution (CVE-2023-4141)

Q: Am I affected by this vulnerability?

You are affected if your site runs Wp Ultimate Csv Importer.

Q: How do I fix it?

Update Wp Ultimate Csv Importer to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do. Until you can update, Request / payload inspection (WAF) in Hack Halt ProSecure contains this class of attack at the request layer.

Q: What can an attacker actually do?

This is a Remote Code Execution flaw. An attacker who exploits it can run their own code on the server, which is total control of the site.

CVE-2023-4141

Vulnerability CVE-2023-4141 PLUGIN wp-ultimate-csv-importer HIGH

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 '->cus2' parameter. This allows authenticated attackers with author-level permissions or above, if the administrator previously grants access in the plugin settings, to create a PHP file and 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 php file creation is still allowed for site administrators, use the plugin with caution.

CVE-2023-4141

HIGH CVSS 8.0 Published 2023-08-04 Updated 2026-06-17

AI Risk High (80/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P2 Urgent

Severity Band HIGH

CVSS Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected Components 1

Reference Links 3

AI Risk Engine High (80/100)

Exploitability High

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2023-08-04 CVE published and first recorded in the threat feed.
2026-06-17 Record updated with latest vulnerability metadata.
2026-04-09 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 175 days ago

AI enriched 175 days ago (2026-04-09 10:23 UTC)

Technical Summary

Potential Impact

Severity is HIGH (CVSS 8.0). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as High based on remote code execution potential.

Primary risk drivers: remote code execution potential

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Wp Ultimate Csv Importer PLUGIN · wp-ultimate-csv-importer Affected: <= 7.9.8 Fixed version not specified

References

What to do about this

Patch promptly The consequence is significant even where an attacker needs a foothold first.

Fix it

Update Wp Ultimate Csv Importer to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

Cannot update today? Request / payload inspection (WAF) in Hack Halt ProSecure blocks this class of attack before WordPress processes the request.

Inspect request parameters and bodies for injection, traversal and file-inclusion payloads, and refuse the request rather than logging it.

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Not sure if you are affected?

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