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8.8

CVE-2026-13353: WP Ultimate CSV Importer plugin allows attackers to run code on server

CVE-2026-13353 CVE-2026-13353
Summary

The WP Ultimate CSV Importer plugin for WordPress has a security flaw that allows attackers with basic access to run malicious code on your website. This means they can potentially steal data, delete files, or take control of your site. You should update the plugin to the latest version to fix this issue.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software
VendorProductAffected versions
smackcoders wp ultimate csv importer – wordpress import & export for csv, xml & excel <= 8.0.1
Original title
WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter
Original 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.
nvd CVSS3.1 8.8
Vulnerability type
CWE-94 Code Injection
Published: 11 Jul 2026 · Updated: 20 Jul 2026 · First seen: 11 Jul 2026