CVE-2023-4142 HIGH

CVE-2023-4142: WP Ultimate CSV Importer <= 7.9.8 - Authenticated (Author+) Remote Code Execution

Vendor Smackcoders
Product WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress
Weakness CWE-94 · Code injection
Published August 4, 2023
Last update April 8, 2026

CVSS base score

8.0/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 4, 2023 CVE published
April 8, 2026 Record updated