CVE-2026-13353
WP Ultimate CSV Importer <= 8.0.1 - Missing Authorization to Authenticated (Subscriber+) Remote Code Execution via 'MappedFields' Parameter
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.1% · top 34% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
References (6)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e89fc348-1146-4593-8bf5-127f783ab786?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/wp-ultimate-csv-importer.php#L419 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/InstallAddons.php#L66 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L185 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L1562 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset/3591135/wp-ultimate-csv-importer (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-13353)Record last updated .