Vulnerability · Published Jul 11, 2026 · Assigned by Wordfence

CVE-2026-13353WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter

High 8.8

In plain English

A high-severity code injection in WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel from smackcoders. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.1%top 33.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
smackcoders	WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel	0 – through 8.0.1

Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

In plain English

Official description

Affected products (as reported)

References