WordPress security changelog
HIGH CVE-2026-13353 Deferred

WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel: Code execution

WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel is affected by code execution. Exploitation requires at least subscriber-level access. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is <= 8.0.1.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel
Plugin slug
wp-ultimate-csv-importer
Affected
<= 8.0.1
Safe version
> 8.0.1
Published
Jul 11, 2026
Weakness
CWE-94 — Improper Control of Generation of Code ('Code Injection')

This CVE was published Jul 11, 2026 and is one of 14 known issues for this plugin.

What to do

Update, patch or deactivate.

Update WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel to a release after 8.0.1, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Primary and upstream sources