CVE-2026-13353

HighCVSS 8.8

Published: 11/07/2026(UTC)Updated: 13/07/2026(UTC)Translated: 14/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.61%

45th percentile - higher than 45% of all known CVEs

Summary

The WP Ultimate CSV Importer plugin for WordPress up to version 8.0.1 is vulnerable to Remote Code Execution via the 'MappedFields' parameter. Missing capability checks on AJAX handlers and exposure of the plugin nonce to any authenticated user allow a Subscriber to install the Import WooCommerce add-on, persist attacker-controlled PHP expressions in MappedFields, and trigger eval() in ImportHelpers::get_meta_values().

Risk Assessment

An attacker with subscriber-level access can execute arbitrary PHP code on the server, leading to full compromise of the WordPress site and potentially the underlying server.

Recommendation

Immediately update the WP Ultimate CSV Importer plugin to the latest available version. If no update is available, temporarily disable the plugin or restrict admin panel access to trusted users only.

Other vulnerabilities in WP Ultimate CSV Importer

CVE-2026-80488Medium
The WP Ultimate CSV Importer WordPress plugin before 9.0 does not properly sanitise and escape imported field values before using them in a SQL statement, which could allow high privilege users such as admin to perform SQL injection attacks.

Original NVD description (English source)

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.