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CVE-2023-4140

HIGH 8.8 CVSS 3.1
Published
August 4, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-269
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The WP Ultimate CSV Importer plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 7.9.8 due to insufficient restriction on the 'get_header_values' function. This makes it possible for authenticated attackers, with minimal permissions such as an author, if the administrator previously grants access in the plugin settings, to modify their user role by supplying the 'wp_capabilities->cus1' parameter.

Affected WordPress components

  • WP Ultimate CSV Importer – WordPress CSV, XML & Excel Import Plugin · wp-ultimate-csv-importer
    Confirmed match Active
    Up to and including 7.9.8
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • smackcoders WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress — Up to and including 7.9.8
  • smackcoders wp_ultimate_csv_importer — Up to and including 7.9.8

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/7.9.6/importExtensions/ImportHelpers.php#L205 Release Notes
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2944635/wp-ultimate-csv-importer/trunk/wp-ultimate-csv-importer.php Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5fdba41f-daa5-44e8-bc47-aa8b7bd31054?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record