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8.8

WP Ultimate CSV Importer plugin allows attackers to run code on server

CVE-2026-13353 · published 3 months ago
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

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
smackcoders wp ultimate csv importer – wordpress import & export for csv, xml & excel <= 8.0.1
Original advisory text
WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter
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.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
8.8 High
Exploitation
1% chance of attack within 30 days
Type
CWE-94Code Injection
Timeline
Published11 Jul 2026
Updated4 Nov 2026
First seen11 Jul 2026
Sources
CVE-2026-13353 · NVD
CVE-2026-13353 · MITRE
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