---
id: CVE-2026-13353
title: >-
  The WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel
  plugin for WordPress is vulnerable to Remote Code Execution in all versions up
  to, and including, 8.0.1 via the 'MappedFields' parameter
summary: >-
  The WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel
  plugin for WordPress is vulnerable to Remote Code Execution in all versions up
  to, and including, 8.0.1 via the 'MappedFields' parameter. This is due to
  missin…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
published: '2026-07-11'
updated: '2026-07-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-13353'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/InstallAddons.php#L66
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L1562
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L185
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/wp-ultimate-csv-importer.php#L419
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3591135/wp-ultimate-csv-importer
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/e89fc348-1146-4593-8bf5-127f783ab786?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.0111
epssPercentile: 0.64488
ingestedAt: '2026-07-11T22:16:01.150Z'
---

## Overview

The WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 8.0.1 via the 'MappedFields' parameter. This is due to missing capability checks on the AJAX handlers for install_addon, saveMappedFields, and StartImport, combined with the plugin nonce being exposed to any authenticated user who can load an admin page, allowing a Subscriber to install the Import WooCommerce add-on, persist attacker-controlled PHP expressions in the MappedFields parameter, and trigger evaluation via eval() in ImportHelpers::get_meta_values(). This makes it possible for authenticated attackers, with subscriber-level access and above, to execute code on the server.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.